{"source":"kalshi","id":"KXHIGHCHI-26AUG18","ticker":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18","title":"Highest temperature in Chicago on Aug 18, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":null,"volume":2379.12,"volume_24hr":2379.12,"volume_24h_change":null,"normalized_vol_24hr":21.79754638671875,"normalized_volume":16.703956604003906,"liquidity":null,"open_interest":2125.89,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"80° to 81°","top_outcome_probability":0.45,"top_outcome_prob_24h_change":0.09000000000000002,"top_outcome_volume_24h_change":390.90999999999997,"updated_at":"2026-08-17T21:44:38.221691Z","fetched_at":"2026-08-17T21:44:38.221691Z","added_at":"2026-08-17T14:07:25.857023Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","chart_24h":[272.74,305.74,476.74,572.61,781.28,1219.21,1333.9299999999998,1571.9099999999999,2089.86,2144.0299999999997,2335.0299999999997],"markets":[{"source":"kalshi","id":"KXHIGHCHI-26AUG18-B80.5","event_id":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18-B80.5","question":"Will the maximum temperature be 80-81° on Aug 18, 2026?","group_item_title":"80° to 81°","description":"If the maximum temperature recorded at Chicago (CLIMDW) for Aug 18, 2026, is between 80-81° fahrenheit according to The Weather Company, then the market resolves to Yes.\n\n---\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.45,0.55],"probability":0.45,"spread":0.020000000000000018,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":"2026-08-19T06:00:00Z","volume":399.4,"volume_24hr":399.4,"prob_24h_change":0.09000000000000002,"volume_24h_change":390.90999999999997,"normalized_vol_24hr":14.02185344696045,"normalized_volume":11.178672790527344,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-17T21:45:53.199447Z","fetched_at":"2026-08-17T21:44:38.280064Z","added_at":"2026-08-17T14:07:25.934515Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","event_title":"Highest temperature in Chicago on Aug 18, 2026?","chart_24h":[0.36,0.38,0.39,0.42,0.41,0.41,0.42,0.43,0.48,0.45,0.45]},{"source":"kalshi","id":"KXHIGHCHI-26AUG18-B82.5","event_id":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18-B82.5","question":"Will the maximum temperature be 82-83° on Aug 18, 2026?","group_item_title":"82° to 83°","description":"If the maximum temperature recorded at Chicago (CLIMDW) for Aug 18, 2026, is between 82-83° fahrenheit according to The Weather Company, then the market resolves to Yes.\n\n---\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.35,0.65],"probability":0.35,"spread":0.009999999999999953,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":"2026-08-19T06:00:00Z","volume":229.57,"volume_24hr":229.57,"prob_24h_change":0.12999999999999998,"volume_24h_change":212.57,"normalized_vol_24hr":11.557951927185059,"normalized_volume":9.214371681213379,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-17T21:45:53.199447Z","fetched_at":"2026-08-17T21:44:38.280064Z","added_at":"2026-08-17T14:07:25.934515Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","event_title":"Highest temperature in Chicago on Aug 18, 2026?","chart_24h":[0.22,0.24,0.26,0.27,0.26,0.26,0.28,0.33,0.33,0.33,0.35]},{"source":"kalshi","id":"KXHIGHCHI-26AUG18-B78.5","event_id":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18-B78.5","question":"Will the maximum temperature be 78-79° on Aug 18, 2026?","group_item_title":"78° to 79°","description":"If the maximum temperature recorded at Chicago (CLIMDW) for Aug 18, 2026, is between 78-79° fahrenheit according to The Weather Company, then the market resolves to Yes.\n\n---\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.07,0.9299999999999999],"probability":0.07,"spread":0.009999999999999995,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":"2026-08-19T06:00:00Z","volume":719.02,"volume_24hr":719.02,"prob_24h_change":-0.15,"volume_24h_change":699.77,"normalized_vol_24hr":16.902507781982422,"normalized_volume":13.475223541259766,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-17T21:45:53.199447Z","fetched_at":"2026-08-17T21:44:38.280064Z","added_at":"2026-08-17T14:07:25.934515Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","event_title":"Highest temperature in Chicago on Aug 18, 2026?","chart_24h":[0.22,0.22,0.22,0.17,0.16,0.15,0.14,0.1,0.08,0.08,0.08]},{"source":"kalshi","id":"KXHIGHCHI-26AUG18-B84.5","event_id":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18-B84.5","question":"Will the maximum temperature be 84-85° on Aug 18, 2026?","group_item_title":"84° to 85°","description":"If the maximum temperature recorded at Chicago (CLIMDW) for Aug 18, 2026, is between 84-85° fahrenheit according to The Weather Company, then the market resolves to Yes.\n\n---\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.07,0.9299999999999999],"probability":0.07,"spread":0.020000000000000004,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":"2026-08-19T06:00:00Z","volume":142.57,"volume_24hr":142.57,"prob_24h_change":0.030000000000000006,"volume_24h_change":139.57,"normalized_vol_24hr":9.632784843444824,"normalized_volume":7.679566383361816,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-17T21:45:53.199447Z","fetched_at":"2026-08-17T21:44:38.280064Z","added_at":"2026-08-17T14:07:25.934515Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","event_title":"Highest temperature in Chicago on Aug 18, 2026?","chart_24h":[0.04,0.04,0.04,0.04,0.04,0.06,0.06,0.06,0.06,0.05,0.08]},{"source":"kalshi","id":"KXHIGHCHI-26AUG18-T78","event_id":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18-T78","question":"Will the maximum temperature be <78° on Aug 18, 2026?","group_item_title":"77° or below","description":"If the maximum temperature recorded at Chicago (CLIMDW) for Aug 18, 2026, is less than 78° fahrenheit according to The Weather Company, then the market resolves to Yes.\n\n---\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.02,0.98],"probability":0.02,"spread":0.009999999999999998,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":"2026-08-19T06:00:00Z","volume":129.63,"volume_24hr":129.63,"prob_24h_change":-0.02,"volume_24h_change":113.63,"normalized_vol_24hr":9.269896507263184,"normalized_volume":7.390259742736816,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-17T21:45:53.199447Z","fetched_at":"2026-08-17T21:44:38.280064Z","added_at":"2026-08-17T14:07:25.934515Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","event_title":"Highest temperature in Chicago on Aug 18, 2026?","chart_24h":[0.04,0.05,0.07,0.05,0.05,0.05,0.05,0.05,0.05,0.05]},{"source":"kalshi","id":"KXHIGHCHI-26AUG18-T85","event_id":"KXHIGHCHI-26AUG18","slug":"KXHIGHCHI-26AUG18-T85","question":"Will the maximum temperature be >85° on Aug 18, 2026?","group_item_title":"86° or above","description":"If the maximum temperature recorded at Chicago (CLIMDW) for Aug 18, 2026, is greater than 85° fahrenheit according to The Weather Company, then the market resolves to Yes.\n\n---\n\nNot all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.02,0.98],"probability":0.02,"spread":0.01,"active":true,"closed":false,"start_date":"2026-08-17T14:00:00Z","end_date":"2026-08-25T14:00:00Z","closed_time":"2026-08-19T06:00:00Z","volume":758.93,"volume_24hr":758.93,"prob_24h_change":0.0,"volume_24h_change":549.93,"normalized_vol_24hr":17.180831909179688,"normalized_volume":13.697112083435059,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-17T21:02:55.739815Z","fetched_at":"2026-08-17T21:01:45.612671Z","added_at":"2026-08-17T14:07:25.934515Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-18-2026/kxhighchi-26aug18","event_title":"Highest temperature in Chicago on Aug 18, 2026?","chart_24h":[0.02,0.02,0.02,0.02,0.01,0.01,0.01,0.02]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHCHI-26AUG18","as_of":"2026-08-17T21:48:36.100696Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Chicago on Aug 18, 2026?\" — top market at 2% probability across 6 outcomes","source_url":null}}