{"source":"polymarket","id":"712005","ticker":"highest-temperature-in-chicago-on-july-18-2026","slug":"highest-temperature-in-chicago-on-july-18-2026","title":"Highest temperature in Chicago on July 18?","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":5165.8246309999995,"volume_24hr":5170.5746309999995,"volume_24h_change":null,"normalized_vol_24hr":28.4705810546875,"normalized_volume":14.864192962646484,"liquidity":43400.90096,"open_interest":2736.308846000001,"categories":["Climate and Weather"],"tags":[{"id":"84","slug":"weather","label":"Weather"},{"id":"101757","slug":"recurring","label":"Recurring"},{"id":"102169","slug":"hide-from-new","label":"Hide From New"},{"id":"100770","slug":"chicago","label":"Chicago"},{"id":"103040","slug":"daily-temperature","label":"Daily Temperature"},{"id":"104596","slug":"highest-temperature","label":"Highest temperature"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"88-89°F","top_outcome_probability":0.405,"top_outcome_prob_24h_change":-0.05499999999999999,"top_outcome_volume_24h_change":1519.842383,"updated_at":"2026-07-17T05:36:31.942561Z","fetched_at":"2026-07-17T05:36:31.942561Z","added_at":"2026-07-17T01:08:30.103134Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026","chart_24h":[0.0,444.184319,1631.355708,2598.991627,3110.1421619999996,3934.2526669999997,4466.815116,5170.5746309999995],"markets":[{"source":"polymarket","id":"2954230","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-88-89f","question":"Will the highest temperature in Chicago be between 88-89°F on July 18?","group_item_title":"88-89°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.405,0.595],"probability":0.405,"spread":0.01,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":1519.8423829999997,"volume_24hr":1519.842383,"prob_24h_change":-0.05499999999999999,"volume_24h_change":1519.842383,"normalized_vol_24hr":21.92743682861328,"normalized_volume":15.058061599731445,"liquidity":7542.9921,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:38:32.589862Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-88-89f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.46,0.25,0.375,0.36,0.385,0.385,0.405,0.405]},{"source":"polymarket","id":"2954231","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-90-91f","question":"Will the highest temperature in Chicago be between 90-91°F on July 18?","group_item_title":"90-91°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.33,0.67],"probability":0.33,"spread":0.02,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":334.608886,"volume_24hr":334.608886,"prob_24h_change":-0.13,"volume_24h_change":334.608886,"normalized_vol_24hr":13.815733909606934,"normalized_volume":9.487573623657227,"liquidity":3800.2787,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:38:32.589862Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-90-91f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.46,0.285,0.305,0.32,0.385,0.38,0.365,0.33]},{"source":"polymarket","id":"2954229","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-86-87f","question":"Will the highest temperature in Chicago be between 86-87°F on July 18?","group_item_title":"86-87°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.155,0.845],"probability":0.155,"spread":0.01,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":422.877507,"volume_24hr":422.877507,"prob_24h_change":-0.30500000000000005,"volume_24h_change":422.877507,"normalized_vol_24hr":14.947347640991211,"normalized_volume":10.264678955078125,"liquidity":2397.6122,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:38:32.589862Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-86-87f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.46,0.18,0.2,0.185,0.115,0.14,0.145,0.155]},{"source":"polymarket","id":"2954232","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-92-93f","question":"Will the highest temperature in Chicago be between 92-93°F on July 18?","group_item_title":"92-93°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.105,0.895],"probability":0.105,"spread":0.01,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":249.993012,"volume_24hr":249.993012,"prob_24h_change":-0.015,"volume_24h_change":249.993012,"normalized_vol_24hr":12.469944953918457,"normalized_volume":8.563390731811523,"liquidity":2458.4195,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:38:32.589862Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-92-93f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.12,0.13,0.125,0.14,0.125,0.095,0.1,0.105]},{"source":"polymarket","id":"2954228","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-84-85f","question":"Will the highest temperature in Chicago be between 84-85°F on July 18?","group_item_title":"84-85°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.0245,0.9755],"probability":0.0245,"spread":0.009,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":683.753177,"volume_24hr":683.753177,"prob_24h_change":-0.0955,"volume_24h_change":683.753177,"normalized_vol_24hr":17.411422729492188,"normalized_volume":11.95681381225586,"liquidity":5456.66137,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:38:32.589862Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-84-85f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.12,0.0245,0.032,0.036,0.0125,0.015,0.0155,0.0245]},{"source":"polymarket","id":"2954233","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-94-95f","question":"Will the highest temperature in Chicago be between 94-95°F on July 18?","group_item_title":"94-95°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.0145,0.9855],"probability":0.0145,"spread":0.009,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":114.672642,"volume_24hr":114.672642,"prob_24h_change":-0.0405,"volume_24h_change":113.63099199999999,"normalized_vol_24hr":9.218496322631836,"normalized_volume":6.33054780960083,"liquidity":1849.84918,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:36:55.169992Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-94-95f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.055,0.055,0.025,0.071,0.015,0.0185,0.0175,0.0145]},{"source":"polymarket","id":"2954227","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-82-83f","question":"Will the highest temperature in Chicago be between 82-83°F on July 18?","group_item_title":"82-83°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.009,0.991],"probability":0.009,"spread":0.008,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":271.4835,"volume_24hr":271.4835,"prob_24h_change":-0.026000000000000002,"volume_24h_change":266.4835,"normalized_vol_24hr":12.843512535095215,"normalized_volume":8.819927215576172,"liquidity":2076.01887,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:36:55.169992Z","fetched_at":"2026-07-17T05:36:32.011598Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-82-83f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.035,0.076,0.008,0.0065,0.006,0.01,0.009,0.009]},{"source":"polymarket","id":"2954234","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-96-97f","question":"Will the highest temperature in Chicago be between 96-97°F on July 18?","group_item_title":"96-97°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.003,0.997],"probability":0.003,"spread":0.002,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":226.162654,"volume_24hr":226.162654,"prob_24h_change":-0.037,"volume_24h_change":226.162654,"normalized_vol_24hr":12.02373218536377,"normalized_volume":8.256966590881348,"liquidity":5725.16953,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:06:37.532418Z","fetched_at":"2026-07-17T05:05:41.811832Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-96-97f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.04,0.03,0.0145,0.017,0.011,0.0045,0.003,0.003]},{"source":"polymarket","id":"2954236","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-100forhigher","question":"Will the highest temperature in Chicago be 100°F or higher on July 18?","group_item_title":"100°F or higher","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.0025,0.9975],"probability":0.0025,"spread":0.003,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":731.08575,"volume_24hr":731.08575,"prob_24h_change":-0.022500000000000003,"volume_24h_change":731.08575,"normalized_vol_24hr":17.76973533630371,"normalized_volume":12.202875137329102,"liquidity":5385.24345,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:06:37.532418Z","fetched_at":"2026-07-17T05:05:41.811832Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-100forhigher","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.025,0.004,0.0025,0.0065,0.004,0.003,0.005,0.0025]},{"source":"polymarket","id":"2954235","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-98-99f","question":"Will the highest temperature in Chicago be between 98-99°F on July 18?","group_item_title":"98-99°F","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.002,0.998],"probability":0.002,"spread":0.002,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":355.7599,"volume_24hr":355.7599,"prob_24h_change":-0.038,"volume_24h_change":355.7599,"normalized_vol_24hr":14.107623100280762,"normalized_volume":9.688020706176758,"liquidity":4322.35826,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:06:37.532418Z","fetched_at":"2026-07-17T05:05:41.811832Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-98-99f","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.04,0.0245,0.008,0.0065,0.003,0.002,0.002,0.002]},{"source":"polymarket","id":"2954226","event_id":"712005","slug":"highest-temperature-in-chicago-on-july-18-2026-81forbelow","question":"Will the highest temperature in Chicago be 81°F or below on July 18?","group_item_title":"81°F or below","description":"This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 18 Jul '26.\n\nThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD.\n\nTo toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.\n\nThis market can not resolve until the first data point for the following date has been published on the resolution source.\n\nThe resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.\n\nRevisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/highest-temperature-in-chicago-on-december-5-IoEGq9msnWg6.jpg","outcomes":["Yes","No"],"outcome_prices":[0.0015,0.9985],"probability":0.0015,"spread":0.001,"active":true,"closed":false,"start_date":"2026-07-17T01:02:58Z","end_date":"2026-07-18T12:00:00Z","closed_time":null,"volume":294.15662,"volume_24hr":298.90662,"prob_24h_change":-0.0385,"volume_24h_change":294.15662,"normalized_vol_24hr":13.286532402038574,"normalized_volume":9.073150634765625,"liquidity":2833.24538,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-07-17T05:06:37.532418Z","fetched_at":"2026-07-17T05:05:41.811832Z","added_at":"2026-07-17T01:08:30.144313Z","url":"https://polymarket.com/event/highest-temperature-in-chicago-on-july-18-2026/highest-temperature-in-chicago-on-july-18-2026-81forbelow","event_title":"Highest temperature in Chicago on July 18?","chart_24h":[0.04,0.0305,0.002,0.0015,0.0015,0.0015,0.0015,0.0015]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/712005","as_of":"2026-07-17T05:43:26.724582Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Highest temperature in Chicago on July 18?\" — top market at 40% probability across 11 outcomes","source_url":null}}