{"source":"kalshi","id":"KXHIGHCHI-26MAY27","ticker":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27","title":"Highest temperature in Chicago on May 27, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":null,"volume":6081.44,"volume_24hr":6080.44,"volume_24h_change":null,"normalized_vol_24hr":25.22970199584961,"normalized_volume":19.712051391601562,"liquidity":null,"open_interest":4580.91,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"87° or above","top_outcome_probability":0.31,"top_outcome_prob_24h_change":0.28,"top_outcome_volume_24h_change":3184.87,"updated_at":"2026-05-26T18:42:15.676179Z","fetched_at":"2026-05-26T18:42:15.676179Z","added_at":"2026-05-26T14:04:58.593549Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","chart_24h":[1.66,1283.53,1553.36,2591.17,4004.92,4668.54,4950.5599999999995,6080.44],"markets":[{"source":"kalshi","id":"KXHIGHCHI-26MAY27-T86","event_id":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27-T86","question":"Will the high temp in Chicago be >86° on May 27, 2026?","group_item_title":"87° or above","description":"If the highest temperature recorded at Chicago Midway, IL for May 27, 2026, is greater than 86° 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":[0.31,0.69],"probability":0.31,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":"2026-05-28T05:59:00Z","volume":3185.87,"volume_24hr":3184.87,"prob_24h_change":0.28,"volume_24h_change":3184.87,"normalized_vol_24hr":23.446487426757812,"normalized_volume":21.114351272583008,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T18:42:50.668493Z","fetched_at":"2026-05-26T18:42:15.784240Z","added_at":"2026-05-26T14:04:58.660577Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","event_title":"Highest temperature in Chicago on May 27, 2026?","chart_24h":[0.03,0.26,0.19,0.22,0.19,0.18,0.2,0.31]},{"source":"kalshi","id":"KXHIGHCHI-26MAY27-B85.5","event_id":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27-B85.5","question":"Will the high temp in Chicago be 85-86° on May 27, 2026?","group_item_title":"85° to 86°","description":"If the highest temperature recorded at Chicago Midway, IL for May 27, 2026, is between 85-86° 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":[0.29,0.71],"probability":0.29,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":"2026-05-28T05:59:00Z","volume":271.88,"volume_24hr":271.88,"prob_24h_change":0.07999999999999999,"volume_24h_change":271.88,"normalized_vol_24hr":11.336668014526367,"normalized_volume":10.208256721496582,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T18:42:15.784240Z","fetched_at":"2026-05-26T18:42:15.784240Z","added_at":"2026-05-26T14:04:58.660577Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","event_title":"Highest temperature in Chicago on May 27, 2026?","chart_24h":[0.21,0.38,0.32,0.32,0.27,0.29,0.28,0.29]},{"source":"kalshi","id":"KXHIGHCHI-26MAY27-B83.5","event_id":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27-B83.5","question":"Will the high temp in Chicago be 83-84° on May 27, 2026?","group_item_title":"83° to 84°","description":"If the highest temperature recorded at Chicago Midway, IL for May 27, 2026, is between 83-84° 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":[0.28,0.72],"probability":0.28,"spread":0.02999999999999997,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":"2026-05-28T05:59:00Z","volume":271.91,"volume_24hr":271.91,"prob_24h_change":-0.21999999999999997,"volume_24h_change":271.91,"normalized_vol_24hr":11.337112426757812,"normalized_volume":10.208657264709473,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T18:42:50.668493Z","fetched_at":"2026-05-26T18:42:15.784240Z","added_at":"2026-05-26T14:04:58.660577Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","event_title":"Highest temperature in Chicago on May 27, 2026?","chart_24h":[0.5,0.24,0.24,0.32,0.32,0.28,0.28]},{"source":"kalshi","id":"KXHIGHCHI-26MAY27-B81.5","event_id":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27-B81.5","question":"Will the high temp in Chicago be 81-82° on May 27, 2026?","group_item_title":"81° to 82°","description":"If the highest temperature recorded at Chicago Midway, IL for May 27, 2026, is between 81-82° 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":[0.12,0.88],"probability":0.12,"spread":0.009999999999999995,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":"2026-05-28T05:59:00Z","volume":490.17,"volume_24hr":490.17,"prob_24h_change":-0.08000000000000002,"volume_24h_change":489.68,"normalized_vol_24hr":13.83703899383545,"normalized_volume":12.459750175476074,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T18:16:30.441415Z","fetched_at":"2026-05-26T18:15:56.448522Z","added_at":"2026-05-26T14:04:58.660577Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","event_title":"Highest temperature in Chicago on May 27, 2026?","chart_24h":[0.2,0.1,0.1,0.1,0.18,0.15,0.12,0.12]},{"source":"kalshi","id":"KXHIGHCHI-26MAY27-B79.5","event_id":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27-B79.5","question":"Will the high temp in Chicago be 79-80° on May 27, 2026?","group_item_title":"79° to 80°","description":"If the highest temperature recorded at Chicago Midway, IL for May 27, 2026, is between 79-80° 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":0.010000000000000002,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":"2026-05-28T05:59:00Z","volume":395.11,"volume_24hr":395.11,"prob_24h_change":0.010000000000000002,"volume_24h_change":393.94,"normalized_vol_24hr":12.893109321594238,"normalized_volume":11.60977554321289,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T18:42:15.784240Z","fetched_at":"2026-05-26T18:42:15.784240Z","added_at":"2026-05-26T14:04:58.660577Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","event_title":"Highest temperature in Chicago on May 27, 2026?","chart_24h":[0.03,0.05,0.08,0.08,0.04,0.04,0.04]},{"source":"kalshi","id":"KXHIGHCHI-26MAY27-T79","event_id":"KXHIGHCHI-26MAY27","slug":"KXHIGHCHI-26MAY27-T79","question":"Will the high temp in Chicago be <79° on May 27, 2026?","group_item_title":"78° or below","description":"If the highest temperature recorded at Chicago Midway, IL for May 27, 2026, is less than 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":[0.01,0.99],"probability":0.01,"spread":0.02,"active":true,"closed":false,"start_date":"2026-05-26T14:00:00Z","end_date":"2026-06-03T14:00:00Z","closed_time":"2026-05-28T05:59:00Z","volume":1466.5,"volume_24hr":1466.5,"prob_24h_change":-0.049999999999999996,"volume_24h_change":1466.5,"normalized_vol_24hr":19.156728744506836,"normalized_volume":17.249937057495117,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T18:15:56.448522Z","fetched_at":"2026-05-26T18:15:56.448522Z","added_at":"2026-05-26T14:04:58.660577Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-27-2026/kxhighchi-26may27","event_title":"Highest temperature in Chicago on May 27, 2026?","chart_24h":[0.06,0.01,0.03,0.02,0.01,0.01,0.01,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHCHI-26MAY27","as_of":"2026-05-26T18:45:26.904757Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Chicago on May 27, 2026?\" — top market at 31% probability across 6 outcomes","source_url":null}}