{"source":"kalshi","id":"KXHIGHCHI-26MAY26","ticker":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26","title":"Highest temperature in Chicago on May 26, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":null,"volume":44818.31,"volume_24hr":42116.21,"volume_24h_change":null,"normalized_vol_24hr":37.561767578125,"normalized_volume":29.784563064575195,"liquidity":null,"open_interest":32035.5,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"85° to 86°","top_outcome_probability":0.62,"top_outcome_prob_24h_change":0.33,"top_outcome_volume_24h_change":8676.78,"updated_at":"2026-05-26T16:04:13.700744Z","fetched_at":"2026-05-26T16:04:13.700744Z","added_at":"2026-05-25T14:00:39.284388Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","chart_24h":[2428.91,2648.8,2844.36,4324.36,4543.53,5304.87,5357.87,6135.87,6168.84,6618.0199999999995,7571.07,8035.89,8231.02,8534.11,10535.93,12832.95,14374.23,16403.48,17440.2,17801.71,18444.4,20234.87,20995.09,21613.15,23070.82,23252.48,23278.65,23874.07,24368.41,27052.170000000002,29759.989999999998,34674.53,36412.4,39389.84,40212.22,41307.29,42116.21],"markets":[{"source":"kalshi","id":"KXHIGHCHI-26MAY26-B85.5","event_id":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26-B85.5","question":"Will the high temp in Chicago be 85-86° on May 26, 2026?","group_item_title":"85° to 86°","description":"If the highest temperature recorded at Chicago Midway, IL for May 26, 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":[0.62,0.38],"probability":0.62,"spread":0.020000000000000018,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":"2026-05-27T05:59:00Z","volume":9119.22,"volume_24hr":8766.0,"prob_24h_change":0.33,"volume_24h_change":8676.78,"normalized_vol_24hr":29.5591983795166,"normalized_volume":26.977310180664062,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T16:04:43.418200Z","fetched_at":"2026-05-26T16:04:13.789915Z","added_at":"2026-05-25T14:00:39.352559Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","event_title":"Highest temperature in Chicago on May 26, 2026?","chart_24h":[0.29,0.32,0.33,0.33,0.37,0.33,0.34,0.35,0.4,0.44,0.43,0.4,0.45,0.44,0.45,0.42,0.46,0.4,0.45,0.46,0.44,0.43,0.41,0.41,0.48,0.44,0.46,0.44,0.47,0.5,0.47,0.5,0.53,0.59,0.59,0.58,0.62]},{"source":"kalshi","id":"KXHIGHCHI-26MAY26-B87.5","event_id":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26-B87.5","question":"Will the high temp in Chicago be 87-88° on May 26, 2026?","group_item_title":"87° to 88°","description":"If the highest temperature recorded at Chicago Midway, IL for May 26, 2026, is between 87-88° 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":0.03999999999999998,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":"2026-05-27T05:59:00Z","volume":6899.33,"volume_24hr":6860.41,"prob_24h_change":-0.08000000000000002,"volume_24h_change":6819.49,"normalized_vol_24hr":27.984832763671875,"normalized_volume":25.352096557617188,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T16:04:43.418200Z","fetched_at":"2026-05-26T16:04:13.789915Z","added_at":"2026-05-25T14:00:39.352559Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","event_title":"Highest temperature in Chicago on May 26, 2026?","chart_24h":[0.32,0.32,0.32,0.29,0.28,0.29,0.27,0.26,0.26,0.3,0.29,0.26,0.26,0.24,0.23,0.26,0.26,0.29,0.26,0.26,0.3,0.33,0.35,0.37,0.35,0.36,0.36,0.32,0.34,0.29,0.31,0.31,0.29,0.27,0.28,0.28,0.24]},{"source":"kalshi","id":"KXHIGHCHI-26MAY26-B83.5","event_id":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26-B83.5","question":"Will the high temp in Chicago be 83-84° on May 26, 2026?","group_item_title":"83° to 84°","description":"If the highest temperature recorded at Chicago Midway, IL for May 26, 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":[0.12,0.88],"probability":0.12,"spread":0.009999999999999995,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":"2026-05-27T05:59:00Z","volume":10075.91,"volume_24hr":8637.04,"prob_24h_change":-0.16000000000000003,"volume_24h_change":7209.540000000001,"normalized_vol_24hr":29.462779998779297,"normalized_volume":27.570796966552734,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T16:04:43.418200Z","fetched_at":"2026-05-26T16:04:13.789915Z","added_at":"2026-05-25T14:00:39.352559Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","event_title":"Highest temperature in Chicago on May 26, 2026?","chart_24h":[0.28,0.28,0.28,0.27,0.27,0.31,0.3,0.24,0.24,0.24,0.2,0.22,0.23,0.24,0.25,0.28,0.21,0.2,0.22,0.18,0.14,0.16,0.13,0.12,0.15,0.14,0.16,0.16,0.15,0.17,0.17,0.17,0.18,0.17,0.15,0.13,0.12]},{"source":"kalshi","id":"KXHIGHCHI-26MAY26-T83","event_id":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26-T83","question":"Will the high temp in Chicago be <83° on May 26, 2026?","group_item_title":"82° or below","description":"If the highest temperature recorded at Chicago Midway, IL for May 26, 2026, is less than 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":[0.02,0.98],"probability":0.02,"spread":0.01,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":"2026-05-27T05:59:00Z","volume":9980.35,"volume_24hr":9591.29,"prob_24h_change":-0.009999999999999998,"volume_24h_change":9233.050000000001,"normalized_vol_24hr":30.147930145263672,"normalized_volume":27.51382827758789,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T16:04:43.418200Z","fetched_at":"2026-05-26T16:04:13.789915Z","added_at":"2026-05-25T14:00:39.352559Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","event_title":"Highest temperature in Chicago on May 26, 2026?","chart_24h":[0.03,0.04,0.04,0.04,0.04,0.03,0.04,0.04,0.03,0.03,0.03,0.03,0.04,0.04,0.09,0.1,0.08,0.07,0.07,0.07,0.05,0.03,0.03,0.04,0.03,0.03,0.05,0.05,0.05,0.04,0.02,0.01,0.01,0.01,0.02,0.02]},{"source":"kalshi","id":"KXHIGHCHI-26MAY26-B89.5","event_id":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26-B89.5","question":"Will the high temp in Chicago be 89-90° on May 26, 2026?","group_item_title":"89° to 90°","description":"If the highest temperature recorded at Chicago Midway, IL for May 26, 2026, is between 89-90° 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":0.01,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":"2026-05-27T05:59:00Z","volume":5498.91,"volume_24hr":5214.38,"prob_24h_change":-0.049999999999999996,"volume_24h_change":4905.85,"normalized_vol_24hr":26.27385902404785,"normalized_volume":24.06760597229004,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T15:51:37.201663Z","fetched_at":"2026-05-26T15:51:08.554791Z","added_at":"2026-05-25T14:00:39.352559Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","event_title":"Highest temperature in Chicago on May 26, 2026?","chart_24h":[0.06,0.06,0.1,0.06,0.04,0.04,0.05,0.08,0.08,0.03,0.02,0.05,0.05,0.05,0.11,0.06,0.05,0.05,0.04,0.05,0.06,0.03,0.03,0.03,0.03,0.02,0.01,0.01,0.01,0.01,0.01,0.01,0.01]},{"source":"kalshi","id":"KXHIGHCHI-26MAY26-T90","event_id":"KXHIGHCHI-26MAY26","slug":"KXHIGHCHI-26MAY26-T90","question":"Will the high temp in Chicago be >90° on May 26, 2026?","group_item_title":"91° or above","description":"If the highest temperature recorded at Chicago Midway, IL for May 26, 2026, is greater than 90° 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":0.01,"active":true,"closed":false,"start_date":"2026-05-25T14:00:00Z","end_date":"2026-06-02T14:00:00Z","closed_time":"2026-05-27T05:59:00Z","volume":3244.59,"volume_24hr":3047.09,"prob_24h_change":-0.01,"volume_24h_change":2842.59,"normalized_vol_24hr":23.079965591430664,"normalized_volume":21.210037231445312,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-26T15:25:30.977741Z","fetched_at":"2026-05-26T15:24:55.593681Z","added_at":"2026-05-25T14:00:39.352559Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-26-2026/kxhighchi-26may26","event_title":"Highest temperature in Chicago on May 26, 2026?","chart_24h":[0.02,0.03,0.02,0.02,0.02,0.02,0.02,0.02,0.02,0.02,0.01,0.02,0.02,0.01,0.02,0.02,0.01,0.01,0.01,0.01,0.01,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHCHI-26MAY26","as_of":"2026-05-26T16:09:47.586391Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Chicago on May 26, 2026?\" — top market at 2% probability across 6 outcomes","source_url":null}}