{"source":"kalshi","id":"KXHIGHCHI-26AUG13","ticker":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13","title":"Highest temperature in Chicago on Aug 13, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":null,"volume":27153.65,"volume_24hr":27153.65,"volume_24h_change":null,"normalized_vol_24hr":37.30867004394531,"normalized_volume":28.87882423400879,"liquidity":null,"open_interest":21563.03,"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":0.61,"top_outcome_prob_24h_change":0.47,"top_outcome_volume_24h_change":10051.08,"updated_at":"2026-08-13T09:41:10.246812Z","fetched_at":"2026-08-13T09:41:10.246812Z","added_at":"2026-08-12T14:13:26.664213Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","chart_24h":[537.7,727.98,972.9,1010.43,1437.29,1544.4499999999998,1562.23,1999.82,2455.39,2461.39,2675.39,2921.66,3078.66,3495.9700000000003,6262.73,7480.17,9951.220000000001,11296.47,12334.29,15817.880000000001,18391.39,19235.57,19549.32,19677.21,19981.19,20398.0,22793.97,22827.97,22872.13,27153.65],"markets":[{"source":"kalshi","id":"KXHIGHCHI-26AUG13-B80.5","event_id":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13-B80.5","question":"Will the high temp in Chicago be 80-81° on Aug 13, 2026?","group_item_title":"80° to 81°","description":"If the highest temperature recorded at Chicago Midway, IL for August 13, 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":[0.61,0.39],"probability":0.61,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":"2026-08-14T05:59:00Z","volume":10053.08,"volume_24hr":10053.08,"prob_24h_change":0.47,"volume_24h_change":10051.08,"normalized_vol_24hr":34.883541107177734,"normalized_volume":26.43864631652832,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-13T09:43:08.047428Z","fetched_at":"2026-08-13T09:41:10.464948Z","added_at":"2026-08-12T14:13:26.910242Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","event_title":"Highest temperature in Chicago on Aug 13, 2026?","chart_24h":[0.14,0.15,0.15,0.16,0.15,0.14,0.15,0.15,0.16,0.17,0.17,0.37,0.38,0.45,0.49,0.48,0.68,0.72,0.68,0.71,0.68,0.6,0.65,0.77,0.77,0.7,0.61]},{"source":"kalshi","id":"KXHIGHCHI-26AUG13-B82.5","event_id":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13-B82.5","question":"Will the high temp in Chicago be 82-83° on Aug 13, 2026?","group_item_title":"82° to 83°","description":"If the highest temperature recorded at Chicago Midway, IL for August 13, 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":[0.29,0.71],"probability":0.29,"spread":0.009999999999999953,"active":true,"closed":false,"start_date":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":"2026-08-14T05:59:00Z","volume":6802.59,"volume_24hr":6802.59,"prob_24h_change":0.24,"volume_24h_change":6801.59,"normalized_vol_24hr":31.989717483520508,"normalized_volume":24.245384216308594,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-13T09:43:08.047428Z","fetched_at":"2026-08-13T09:41:10.464948Z","added_at":"2026-08-12T14:13:26.910242Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","event_title":"Highest temperature in Chicago on Aug 13, 2026?","chart_24h":[0.05,0.05,0.04,0.05,0.05,0.05,0.05,0.05,0.09,0.07,0.1,0.06,0.02,0.04,0.03,0.05,0.07,0.04,0.05,0.04,0.04,0.04,0.07,0.04,0.04,0.15,0.29]},{"source":"kalshi","id":"KXHIGHCHI-26AUG13-B78.5","event_id":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13-B78.5","question":"Will the high temp in Chicago be 78-79° on Aug 13, 2026?","group_item_title":"78° to 79°","description":"If the highest temperature recorded at Chicago Midway, IL for August 13, 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":[0.14,0.86],"probability":0.14,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":"2026-08-14T05:59:00Z","volume":3437.82,"volume_24hr":3437.82,"prob_24h_change":-0.18,"volume_24h_change":3427.82,"normalized_vol_24hr":27.234359741210938,"normalized_volume":20.64124298095703,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-13T09:43:08.047428Z","fetched_at":"2026-08-13T09:41:10.464948Z","added_at":"2026-08-12T14:13:26.910242Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","event_title":"Highest temperature in Chicago on Aug 13, 2026?","chart_24h":[0.32,0.41,0.41,0.41,0.43,0.42,0.42,0.42,0.42,0.42,0.42,0.42,0.36,0.43,0.38,0.36,0.37,0.19,0.18,0.2,0.2,0.2,0.23,0.23,0.19,0.19,0.15,0.14]},{"source":"kalshi","id":"KXHIGHCHI-26AUG13-B76.5","event_id":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13-B76.5","question":"Will the high temp in Chicago be 76-77° on Aug 13, 2026?","group_item_title":"76° to 77°","description":"If the highest temperature recorded at Chicago Midway, IL for August 13, 2026, is between 76-77° 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":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":"2026-08-14T05:59:00Z","volume":2876.92,"volume_24hr":2876.92,"prob_24h_change":-0.27999999999999997,"volume_24h_change":2868.92,"normalized_vol_24hr":26.05631446838379,"normalized_volume":19.748388290405273,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-13T09:43:08.047428Z","fetched_at":"2026-08-13T09:41:10.464948Z","added_at":"2026-08-12T14:13:26.910242Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","event_title":"Highest temperature in Chicago on Aug 13, 2026?","chart_24h":[0.3,0.29,0.24,0.24,0.28,0.29,0.25,0.21,0.19,0.21,0.19,0.18,0.22,0.22,0.16,0.09,0.1,0.11,0.14,0.1,0.09,0.07,0.07,0.07,0.07,0.09,0.09,0.09,0.09,0.05,0.02]},{"source":"kalshi","id":"KXHIGHCHI-26AUG13-T83","event_id":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13-T83","question":"Will the high temp in Chicago be >83° on Aug 13, 2026?","group_item_title":"84° or above","description":"If the highest temperature recorded at Chicago Midway, IL for August 13, 2026, is greater 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":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":"2026-08-14T05:59:00Z","volume":1918.11,"volume_24hr":1918.11,"prob_24h_change":0.01,"volume_24h_change":1472.06,"normalized_vol_24hr":23.472551345825195,"normalized_volume":17.790122985839844,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-13T09:26:37.327960Z","fetched_at":"2026-08-13T09:24:17.282476Z","added_at":"2026-08-12T14:13:26.910242Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","event_title":"Highest temperature in Chicago on Aug 13, 2026?","chart_24h":[0.01,0.02,0.02,0.02,0.02,0.02,0.02,0.01,0.02,0.02,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.02,0.01,0.01,0.02]},{"source":"kalshi","id":"KXHIGHCHI-26AUG13-T76","event_id":"KXHIGHCHI-26AUG13","slug":"KXHIGHCHI-26AUG13-T76","question":"Will the high temp in Chicago be <76° on Aug 13, 2026?","group_item_title":"75° or below","description":"If the highest temperature recorded at Chicago Midway, IL for August 13, 2026, is less than 76° 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":"2026-08-12T14:00:00Z","end_date":"2026-08-20T14:00:00Z","closed_time":"2026-08-14T05:59:00Z","volume":2065.13,"volume_24hr":2065.13,"prob_24h_change":-0.13999999999999999,"volume_24h_change":1994.48,"normalized_vol_24hr":23.933183670043945,"normalized_volume":18.13924217224121,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-13T09:26:37.327960Z","fetched_at":"2026-08-13T09:24:17.282476Z","added_at":"2026-08-12T14:13:26.910242Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-aug-13-2026/kxhighchi-26aug13","event_title":"Highest temperature in Chicago on Aug 13, 2026?","chart_24h":[0.15,0.15,0.14,0.13,0.13,0.13,0.12,0.11,0.1,0.09,0.05,0.04,0.03,0.04,0.03,0.01,0.01,0.01,0.01,0.01,0.02,0.02,0.01,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHCHI-26AUG13","as_of":"2026-08-13T09:49:52.431202Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Chicago on Aug 13, 2026?\" — top market at 61% probability across 6 outcomes","source_url":null}}