{"source":"kalshi","id":"KXHIGHTBOS-26AUG21","ticker":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21","title":"Highest temperature in Boston on Aug 21, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":null,"volume":2015.55,"volume_24hr":2015.55,"volume_24h_change":null,"normalized_vol_24hr":20.428564071655273,"normalized_volume":15.964265823364258,"liquidity":null,"open_interest":1739.55,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"74° or below","top_outcome_probability":0.78,"top_outcome_prob_24h_change":0.32,"top_outcome_volume_24h_change":490.37,"updated_at":"2026-08-20T20:48:27.108749Z","fetched_at":"2026-08-20T20:48:27.108749Z","added_at":"2026-08-20T14:15:52.828411Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","chart_24h":[180.0,621.66,807.6600000000001,1293.66,1414.66,1534.66,1728.6599999999999,1944.67,1949.18,2015.55],"markets":[{"source":"kalshi","id":"KXHIGHTBOS-26AUG21-T75","event_id":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21-T75","question":"Will the maximum temperature be <75° on Aug 21, 2026?","group_item_title":"74° or below","description":"If the maximum temperature recorded at Boston (CLIBOS) for Aug 21, 2026, is less than 75° fahrenheit according to The Weather Company, 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 maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.78,0.21999999999999997],"probability":0.78,"spread":0.040000000000000036,"active":true,"closed":false,"start_date":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":"2026-08-22T05:00:00Z","volume":528.37,"volume_24hr":528.37,"prob_24h_change":0.32,"volume_24h_change":490.37,"normalized_vol_24hr":15.826313972473145,"normalized_volume":12.244702339172363,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-20T21:08:32.078002Z","fetched_at":"2026-08-20T21:08:32.078002Z","added_at":"2026-08-20T14:15:53.000904Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","event_title":"Highest temperature in Boston on Aug 21, 2026?","chart_24h":[0.46,0.57,0.63,0.61,0.63,0.63,0.73,0.74,0.74,0.78]},{"source":"kalshi","id":"KXHIGHTBOS-26AUG21-B75.5","event_id":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21-B75.5","question":"Will the maximum temperature be 75-76° on Aug 21, 2026?","group_item_title":"75° to 76°","description":"If the maximum temperature recorded at Boston (CLIBOS) for Aug 21, 2026, is between 75-76° fahrenheit according to The Weather Company, 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 maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.21,0.79],"probability":0.21,"spread":0.03,"active":true,"closed":false,"start_date":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":"2026-08-22T05:00:00Z","volume":34.51,"volume_24hr":34.51,"prob_24h_change":-0.15,"volume_24h_change":33.51,"normalized_vol_24hr":5.1274590492248535,"normalized_volume":3.9670772552490234,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-20T21:08:32.078002Z","fetched_at":"2026-08-20T21:08:32.078002Z","added_at":"2026-08-20T14:15:53.000904Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","event_title":"Highest temperature in Boston on Aug 21, 2026?","chart_24h":[0.36,0.3,0.29,0.24,0.2,0.21,0.21,0.21]},{"source":"kalshi","id":"KXHIGHTBOS-26AUG21-B77.5","event_id":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21-B77.5","question":"Will the maximum temperature be 77-78° on Aug 21, 2026?","group_item_title":"77° to 78°","description":"If the maximum temperature recorded at Boston (CLIBOS) for Aug 21, 2026, is between 77-78° fahrenheit according to The Weather Company, 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 maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.05,0.95],"probability":0.05,"spread":0.009999999999999995,"active":true,"closed":false,"start_date":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":"2026-08-22T05:00:00Z","volume":17.0,"volume_24hr":17.0,"prob_24h_change":-0.06,"volume_24h_change":16.0,"normalized_vol_24hr":3.3613855838775635,"normalized_volume":2.6006791591644287,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-20T20:52:25.878493Z","fetched_at":"2026-08-20T20:48:27.252240Z","added_at":"2026-08-20T14:15:53.000904Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","event_title":"Highest temperature in Boston on Aug 21, 2026?","chart_24h":[0.11,0.11,0.09,0.09,0.09,0.06,0.05,0.05]},{"source":"kalshi","id":"KXHIGHTBOS-26AUG21-B79.5","event_id":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21-B79.5","question":"Will the maximum temperature be 79-80° on Aug 21, 2026?","group_item_title":"79° to 80°","description":"If the maximum temperature recorded at Boston (CLIBOS) for Aug 21, 2026, is between 79-80° fahrenheit according to The Weather Company, 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 maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.019999999999999997,"active":true,"closed":false,"start_date":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":"2026-08-22T05:00:00Z","volume":332.0,"volume_24hr":332.0,"prob_24h_change":-0.019999999999999997,"volume_24h_change":297.0,"normalized_vol_24hr":13.5733003616333,"normalized_volume":10.501562118530273,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-20T18:43:59.796445Z","fetched_at":"2026-08-20T18:38:19.195102Z","added_at":"2026-08-20T14:15:53.000904Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","event_title":"Highest temperature in Boston on Aug 21, 2026?","chart_24h":[0.03,0.02,0.03,0.03,0.02,0.01]},{"source":"kalshi","id":"KXHIGHTBOS-26AUG21-B81.5","event_id":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21-B81.5","question":"Will the maximum temperature be 81-82° on Aug 21, 2026?","group_item_title":"81° to 82°","description":"If the maximum temperature recorded at Boston (CLIBOS) for Aug 21, 2026, is between 81-82° fahrenheit according to The Weather Company, 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 maximum/minimum temperature as reported by the Weather Company.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.03,"active":true,"closed":false,"start_date":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":"2026-08-22T05:00:00Z","volume":492.01,"volume_24hr":492.01,"prob_24h_change":-0.01,"volume_24h_change":457.01,"normalized_vol_24hr":15.469222068786621,"normalized_volume":11.968422889709473,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-20T19:30:26.316094Z","fetched_at":"2026-08-20T19:23:55.477616Z","added_at":"2026-08-20T14:15:53.000904Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","event_title":"Highest temperature in Boston on Aug 21, 2026?","chart_24h":[0.02,0.02,0.01,0.02,0.02,0.01,0.01]},{"source":"kalshi","id":"KXHIGHTBOS-26AUG21-T82","event_id":"KXHIGHTBOS-26AUG21","slug":"KXHIGHTBOS-26AUG21-T82","question":"Will the maximum temperature be >82° on Aug 21, 2026?","group_item_title":"83° or above","description":"If the maximum temperature recorded at Boston (CLIBOS) for Aug 21, 2026, is greater than 82° fahrenheit according to The Weather Company, 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 maximum/minimum temperature as reported by the Weather Company.","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":"2026-08-20T14:00:00Z","end_date":"2026-08-28T14:00:00Z","closed_time":"2026-08-22T05:00:00Z","volume":611.66,"volume_24hr":611.66,"prob_24h_change":-0.01,"volume_24h_change":541.66,"normalized_vol_24hr":16.572372436523438,"normalized_volume":12.821921348571777,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-08-20T19:05:15.625800Z","fetched_at":"2026-08-20T19:00:20.501737Z","added_at":"2026-08-20T14:15:53.000904Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-aug-21-2026/kxhightbos-26aug21","event_title":"Highest temperature in Boston on Aug 21, 2026?","chart_24h":[0.02,0.01,0.01,0.02,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHTBOS-26AUG21","as_of":"2026-08-20T21:14:00.572380Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Boston on Aug 21, 2026?\" — top market at 1% probability across 6 outcomes","source_url":null}}