{"source":"kalshi","id":"KXHIGHCHI-26JUL31","ticker":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31","title":"Highest temperature in Chicago on Jul 31, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":null,"volume":4895.88,"volume_24hr":4895.88,"volume_24h_change":null,"normalized_vol_24hr":23.221527099609375,"normalized_volume":19.438079833984375,"liquidity":null,"open_interest":4151.47,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"82° to 83°","top_outcome_probability":0.37,"top_outcome_prob_24h_change":0.06,"top_outcome_volume_24h_change":279.88,"updated_at":"2026-07-30T21:56:56.870924Z","fetched_at":"2026-07-30T21:56:56.870924Z","added_at":"2026-07-30T15:29:15.003596Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","chart_24h":[32.46,125.47,779.4,1114.52,1419.3100000000002,1752.0700000000002,2412.28,2852.4300000000003,3443.4300000000003,4196.98,4467.3,4768.59],"markets":[{"source":"kalshi","id":"KXHIGHCHI-26JUL31-B82.5","event_id":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31-B82.5","question":"Will the high temp in Chicago be 82-83° on Jul 31, 2026?","group_item_title":"82° to 83°","description":"If the highest temperature recorded at Chicago Midway, IL for July 31, 2026, is between 82-83° according to the National Weather Service's Climatological Report (Daily), 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 highest temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.37,0.63],"probability":0.37,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":"2026-08-01T05:59:00Z","volume":285.67,"volume_24hr":285.67,"prob_24h_change":0.06,"volume_24h_change":279.88,"normalized_vol_24hr":12.658061027526855,"normalized_volume":9.96681022644043,"liquidity":null,"categories":["Climate and Weather"],"countries":[],"updated_at":"2026-07-30T21:42:50.654900Z","fetched_at":"2026-07-30T21:40:36.311585Z","added_at":"2026-07-30T15:29:15.182527Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","event_title":"Highest temperature in Chicago on Jul 31, 2026?","chart_24h":[0.31,0.35,0.35,0.3,0.37,0.37,0.39,0.36,0.38,0.37,0.37]},{"source":"kalshi","id":"KXHIGHCHI-26JUL31-B80.5","event_id":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31-B80.5","question":"Will the high temp in Chicago be 80-81° on Jul 31, 2026?","group_item_title":"80° to 81°","description":"If the highest temperature recorded at Chicago Midway, IL for July 31, 2026, is between 80-81° according to the National Weather Service's Climatological Report (Daily), 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 highest temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.25,0.75],"probability":0.25,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":"2026-08-01T05:59:00Z","volume":1101.81,"volume_24hr":1101.81,"prob_24h_change":-0.030000000000000027,"volume_24h_change":1090.6599999999999,"normalized_vol_24hr":19.32596778869629,"normalized_volume":15.217041969299316,"liquidity":null,"categories":["Climate and Weather"],"countries":[],"updated_at":"2026-07-30T21:59:55.156923Z","fetched_at":"2026-07-30T21:56:57.210692Z","added_at":"2026-07-30T15:29:15.182527Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","event_title":"Highest temperature in Chicago on Jul 31, 2026?","chart_24h":[0.28,0.22,0.21,0.27,0.24,0.24,0.21,0.2,0.22,0.25,0.24,0.24]},{"source":"kalshi","id":"KXHIGHCHI-26JUL31-B84.5","event_id":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31-B84.5","question":"Will the high temp in Chicago be 84-85° on Jul 31, 2026?","group_item_title":"84° to 85°","description":"If the highest temperature recorded at Chicago Midway, IL for July 31, 2026, is between 84-85° according to the National Weather Service's Climatological Report (Daily), 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 highest temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.24,0.76],"probability":0.24,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":"2026-08-01T05:59:00Z","volume":647.67,"volume_24hr":647.67,"prob_24h_change":0.24,"volume_24h_change":647.67,"normalized_vol_24hr":16.50960922241211,"normalized_volume":13.051149368286133,"liquidity":null,"categories":["Climate and Weather"],"countries":[],"updated_at":"2026-07-30T21:59:55.156923Z","fetched_at":"2026-07-30T21:56:57.210692Z","added_at":"2026-07-30T15:29:15.182527Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","event_title":"Highest temperature in Chicago on Jul 31, 2026?","chart_24h":[0.0,0.0,0.19,0.2,0.2,0.2,0.23,0.21,0.21,0.25,0.24,0.24]},{"source":"kalshi","id":"KXHIGHCHI-26JUL31-T85","event_id":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31-T85","question":"Will the high temp in Chicago be >85° on Jul 31, 2026?","group_item_title":"86° or above","description":"If the highest temperature recorded at Chicago Midway, IL for July 31, 2026, is greater than 85° according to the National Weather Service's Climatological Report (Daily), 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 highest temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.08,0.92],"probability":0.08,"spread":0.009999999999999995,"active":true,"closed":false,"start_date":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":"2026-08-01T05:59:00Z","volume":724.86,"volume_24hr":724.86,"prob_24h_change":0.04,"volume_24h_change":714.53,"normalized_vol_24hr":16.668128967285156,"normalized_volume":13.508334159851074,"liquidity":null,"categories":["Climate and Weather"],"countries":[],"updated_at":"2026-07-30T21:59:55.156923Z","fetched_at":"2026-07-30T21:56:57.210692Z","added_at":"2026-07-30T15:29:15.182527Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","event_title":"Highest temperature in Chicago on Jul 31, 2026?","chart_24h":[0.04,0.11,0.07,0.09,0.1,0.11,0.1,0.11,0.1,0.08,0.07,0.08]},{"source":"kalshi","id":"KXHIGHCHI-26JUL31-B78.5","event_id":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31-B78.5","question":"Will the high temp in Chicago be 78-79° on Jul 31, 2026?","group_item_title":"78° to 79°","description":"If the highest temperature recorded at Chicago Midway, IL for July 31, 2026, is between 78-79° according to the National Weather Service's Climatological Report (Daily), 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 highest temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.04,0.96],"probability":0.04,"spread":0.009999999999999998,"active":true,"closed":false,"start_date":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":"2026-08-01T05:59:00Z","volume":1163.32,"volume_24hr":1163.32,"prob_24h_change":-0.16999999999999998,"volume_24h_change":1160.32,"normalized_vol_24hr":19.567405700683594,"normalized_volume":15.407148361206055,"liquidity":null,"categories":["Climate and Weather"],"countries":[],"updated_at":"2026-07-30T21:59:55.156923Z","fetched_at":"2026-07-30T21:56:57.210692Z","added_at":"2026-07-30T15:29:15.182527Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","event_title":"Highest temperature in Chicago on Jul 31, 2026?","chart_24h":[0.21,0.04,0.02,0.02,0.02,0.02,0.04,0.04,0.04,0.04,0.04]},{"source":"kalshi","id":"KXHIGHCHI-26JUL31-T78","event_id":"KXHIGHCHI-26JUL31","slug":"KXHIGHCHI-26JUL31-T78","question":"Will the high temp in Chicago be <78° on Jul 31, 2026?","group_item_title":"77° or below","description":"If the highest temperature recorded at Chicago Midway, IL for July 31, 2026, is less than 78° according to the National Weather Service's Climatological Report (Daily), 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 highest temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above. Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances. Traders should exercise caution when interpreting preliminary NWS data.","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":"2026-07-30T15:25:33.309914Z","end_date":"2026-08-07T14:00:00Z","closed_time":"2026-08-01T05:59:00Z","volume":972.55,"volume_24hr":972.55,"prob_24h_change":-0.009999999999999998,"volume_24h_change":970.3599999999999,"normalized_vol_24hr":18.66401481628418,"normalized_volume":14.695829391479492,"liquidity":null,"categories":["Climate and Weather"],"countries":[],"updated_at":"2026-07-30T21:59:55.156923Z","fetched_at":"2026-07-30T21:56:57.210692Z","added_at":"2026-07-30T15:29:15.182527Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-jul-31-2026/kxhighchi-26jul31","event_title":"Highest temperature in Chicago on Jul 31, 2026?","chart_24h":[0.03,0.07,0.02,0.02,0.03,0.03,0.03,0.04,0.02,0.02]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHCHI-26JUL31","as_of":"2026-07-30T22:01:18.352077Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Chicago on Jul 31, 2026?\" — top market at 4% probability across 6 outcomes","source_url":null}}