{"source":"kalshi","id":"KXHIGHCHI-26MAY28","ticker":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28","title":"Highest temperature in Chicago on May 28, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":null,"volume":8827.46,"volume_24hr":8806.65,"volume_24h_change":null,"normalized_vol_24hr":26.215328216552734,"normalized_volume":21.433866500854492,"liquidity":null,"open_interest":7436.549999999999,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"70° to 71°","top_outcome_probability":0.29,"top_outcome_prob_24h_change":0.03999999999999998,"top_outcome_volume_24h_change":368.09,"updated_at":"2026-05-27T18:16:48.974693Z","fetched_at":"2026-05-27T18:16:48.974693Z","added_at":"2026-05-27T14:10:09.626254Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","chart_24h":[857.08,1207.99,6068.76,6109.759999999999,7126.87,8373.099999999999,8763.65],"markets":[{"source":"kalshi","id":"KXHIGHCHI-26MAY28-B70.5","event_id":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28-B70.5","question":"Will the high temp in Chicago be 70-71° on May 28, 2026?","group_item_title":"70° to 71°","description":"If the highest temperature recorded at Chicago Midway, IL for May 28, 2026, is between 70-71° 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":0.019999999999999962,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":"2026-05-29T05:59:00Z","volume":375.09,"volume_24hr":374.09,"prob_24h_change":0.03999999999999998,"volume_24h_change":368.09,"normalized_vol_24hr":11.783951759338379,"normalized_volume":11.409326553344727,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-27T18:17:22.581627Z","fetched_at":"2026-05-27T18:16:49.039455Z","added_at":"2026-05-27T14:10:09.723870Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","event_title":"Highest temperature in Chicago on May 28, 2026?","chart_24h":[0.25,0.25,0.25,0.29,0.29,0.26,0.28]},{"source":"kalshi","id":"KXHIGHCHI-26MAY28-B72.5","event_id":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28-B72.5","question":"Will the high temp in Chicago be 72-73° on May 28, 2026?","group_item_title":"72° to 73°","description":"If the highest temperature recorded at Chicago Midway, IL for May 28, 2026, is between 72-73° 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":[0.27,0.73],"probability":0.27,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":"2026-05-29T05:59:00Z","volume":892.57,"volume_24hr":886.76,"prob_24h_change":-0.010000000000000009,"volume_24h_change":682.86,"normalized_vol_24hr":15.458601951599121,"normalized_volume":14.982468605041504,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-27T18:17:22.581627Z","fetched_at":"2026-05-27T18:16:49.039455Z","added_at":"2026-05-27T14:10:09.723870Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","event_title":"Highest temperature in Chicago on May 28, 2026?","chart_24h":[0.28,0.3,0.26,0.29,0.31,0.3,0.23]},{"source":"kalshi","id":"KXHIGHCHI-26MAY28-T73","event_id":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28-T73","question":"Will the high temp in Chicago be >73° on May 28, 2026?","group_item_title":"74° or above","description":"If the highest temperature recorded at Chicago Midway, IL for May 28, 2026, is greater than 73° 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":[0.18,0.8200000000000001],"probability":0.18,"spread":0.03,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":"2026-05-29T05:59:00Z","volume":846.31,"volume_24hr":846.31,"prob_24h_change":-0.03,"volume_24h_change":526.31,"normalized_vol_24hr":15.246946334838867,"normalized_volume":14.748973846435547,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-27T18:17:22.581627Z","fetched_at":"2026-05-27T18:16:49.039455Z","added_at":"2026-05-27T14:10:09.723870Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","event_title":"Highest temperature in Chicago on May 28, 2026?","chart_24h":[0.21,0.18,0.21,0.18,0.23,0.2,0.2]},{"source":"kalshi","id":"KXHIGHCHI-26MAY28-B68.5","event_id":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28-B68.5","question":"Will the high temp in Chicago be 68-69° on May 28, 2026?","group_item_title":"68° to 69°","description":"If the highest temperature recorded at Chicago Midway, IL for May 28, 2026, is between 68-69° 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":[0.16,0.84],"probability":0.16,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":"2026-05-29T05:59:00Z","volume":676.56,"volume_24hr":671.56,"prob_24h_change":-0.1,"volume_24h_change":451.55999999999995,"normalized_vol_24hr":14.220155715942383,"normalized_volume":13.787033081054688,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-27T18:17:14.427529Z","fetched_at":"2026-05-27T18:16:49.039455Z","added_at":"2026-05-27T14:10:09.723870Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","event_title":"Highest temperature in Chicago on May 28, 2026?","chart_24h":[0.26,0.22,0.17,0.15,0.17,0.16,0.19]},{"source":"kalshi","id":"KXHIGHCHI-26MAY28-B66.5","event_id":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28-B66.5","question":"Will the high temp in Chicago be 66-67° on May 28, 2026?","group_item_title":"66° to 67°","description":"If the highest temperature recorded at Chicago Midway, IL for May 28, 2026, is between 66-67° 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":[0.05,0.95],"probability":0.05,"spread":0.010000000000000002,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":"2026-05-29T05:59:00Z","volume":4893.84,"volume_24hr":4893.84,"prob_24h_change":0.010000000000000002,"volume_24h_change":4890.84,"normalized_vol_24hr":24.211368560791016,"normalized_volume":23.42061424255371,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-27T17:51:38.344834Z","fetched_at":"2026-05-27T17:51:09.275039Z","added_at":"2026-05-27T14:10:09.723870Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","event_title":"Highest temperature in Chicago on May 28, 2026?","chart_24h":[0.04,0.07,0.12,0.11,0.04,0.04,0.05]},{"source":"kalshi","id":"KXHIGHCHI-26MAY28-T66","event_id":"KXHIGHCHI-26MAY28","slug":"KXHIGHCHI-26MAY28-T66","question":"Will the high temp in Chicago be <66° on May 28, 2026?","group_item_title":"65° or below","description":"If the highest temperature recorded at Chicago Midway, IL for May 28, 2026, is less than 66° 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":[0.03,0.97],"probability":0.03,"spread":0.020000000000000004,"active":true,"closed":false,"start_date":"2026-05-27T14:00:00Z","end_date":"2026-06-04T14:00:00Z","closed_time":"2026-05-29T05:59:00Z","volume":1143.09,"volume_24hr":1134.09,"prob_24h_change":0.009999999999999998,"volume_24h_change":1029.9099999999999,"normalized_vol_24hr":16.59813117980957,"normalized_volume":16.09210205078125,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-27T18:17:14.427529Z","fetched_at":"2026-05-27T18:16:49.039455Z","added_at":"2026-05-27T14:10:09.723870Z","url":"https://kalshi.com/markets/kxhighchi/highest-temperature-in-chicago-on-may-28-2026/kxhighchi-26may28","event_title":"Highest temperature in Chicago on May 28, 2026?","chart_24h":[0.02,0.02,0.02,0.05,0.01,0.03,0.06]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHCHI-26MAY28","as_of":"2026-05-27T18:23:33.240898Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Chicago on May 28, 2026?\" — top market at 5% probability across 6 outcomes","source_url":null}}