{"source":"kalshi","id":"KXHIGHTBOS-26JUN01","ticker":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01","title":"Highest temperature in Boston on Jun 1, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":null,"volume":5245.93,"volume_24hr":5245.93,"volume_24h_change":null,"normalized_vol_24hr":22.111858367919922,"normalized_volume":19.70135498046875,"liquidity":null,"open_interest":5066.74,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"56° or below","top_outcome_probability":0.37,"top_outcome_prob_24h_change":0.09999999999999998,"top_outcome_volume_24h_change":841.19,"updated_at":"2026-05-31T19:31:28.447107Z","fetched_at":"2026-05-31T19:31:28.447107Z","added_at":"2026-05-31T14:11:37.953216Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","chart_24h":[960.0,1146.74,1545.74,1832.74,4674.74,4718.74,4733.74,4842.93],"markets":[{"source":"kalshi","id":"KXHIGHTBOS-26JUN01-T57","event_id":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01-T57","question":"Will the maximum temperature be <57° on Jun 1, 2026?","group_item_title":"56° or below","description":"If the maximum temperature recorded at Boston for Jun 1, 2026, is less than 57° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\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 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":[0.37,0.63],"probability":0.37,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":"2026-06-02T05:00:00Z","volume":1466.19,"volume_24hr":1466.19,"prob_24h_change":0.09999999999999998,"volume_24h_change":841.19,"normalized_vol_24hr":17.240615844726562,"normalized_volume":16.481462478637695,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-31T19:32:05.513039Z","fetched_at":"2026-05-31T19:31:28.524822Z","added_at":"2026-05-31T14:11:38.052089Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","event_title":"Highest temperature in Boston on Jun 1, 2026?","chart_24h":[0.27,0.36,0.37,0.37,0.36,0.36,0.36,0.37]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN01-B57.5","event_id":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01-B57.5","question":"Will the maximum temperature be 57-58° on Jun 1, 2026?","group_item_title":"57° to 58°","description":"If the maximum temperature recorded at Boston for Jun 1, 2026, is between 57-58° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\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 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":[0.32,0.6799999999999999],"probability":0.32,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":"2026-06-02T05:00:00Z","volume":586.0,"volume_24hr":586.0,"prob_24h_change":0.020000000000000018,"volume_24h_change":338.0,"normalized_vol_24hr":13.180440902709961,"normalized_volume":12.600068092346191,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-31T19:32:05.513039Z","fetched_at":"2026-05-31T19:31:28.524822Z","added_at":"2026-05-31T14:11:38.052089Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","event_title":"Highest temperature in Boston on Jun 1, 2026?","chart_24h":[0.3,0.33,0.32,0.33,0.34,0.33,0.34,0.32]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN01-B59.5","event_id":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01-B59.5","question":"Will the maximum temperature be 59-60° on Jun 1, 2026?","group_item_title":"59° to 60°","description":"If the maximum temperature recorded at Boston for Jun 1, 2026, is between 59-60° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\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 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":0.05000000000000002,"active":true,"closed":false,"start_date":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":"2026-06-02T05:00:00Z","volume":145.74,"volume_24hr":145.74,"prob_24h_change":0.030000000000000027,"volume_24h_change":75.74000000000001,"normalized_vol_24hr":8.071130752563477,"normalized_volume":7.71573543548584,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-31T19:44:37.340229Z","fetched_at":"2026-05-31T19:44:37.340229Z","added_at":"2026-05-31T14:11:38.052089Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","event_title":"Highest temperature in Boston on Jun 1, 2026?","chart_24h":[0.25,0.32,0.23,0.24,0.24,0.24,0.28]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN01-B61.5","event_id":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01-B61.5","question":"Will the maximum temperature be 61-62° on Jun 1, 2026?","group_item_title":"61° to 62°","description":"If the maximum temperature recorded at Boston for Jun 1, 2026, is between 61-62° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\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 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":[0.08,0.92],"probability":0.08,"spread":0.01999999999999999,"active":true,"closed":false,"start_date":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":"2026-06-02T05:00:00Z","volume":49.0,"volume_24hr":49.0,"prob_24h_change":0.009999999999999995,"volume_24h_change":46.0,"normalized_vol_24hr":4.963282108306885,"normalized_volume":4.744734764099121,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-31T19:31:28.524822Z","fetched_at":"2026-05-31T19:31:28.524822Z","added_at":"2026-05-31T14:11:38.052089Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","event_title":"Highest temperature in Boston on Jun 1, 2026?","chart_24h":[0.07,0.07,0.07,0.08]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN01-B63.5","event_id":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01-B63.5","question":"Will the maximum temperature be 63-64° on Jun 1, 2026?","group_item_title":"63° to 64°","description":"If the maximum temperature recorded at Boston for Jun 1, 2026, is between 63-64° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\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 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":[0.06,0.94],"probability":0.06,"spread":0.010000000000000002,"active":true,"closed":false,"start_date":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":"2026-06-02T05:00:00Z","volume":6.0,"volume_24hr":6.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":1.2280378341674805,"normalized_volume":1.1739637851715088,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-31T14:52:42.093457Z","fetched_at":"2026-05-31T14:38:38.065559Z","added_at":"2026-05-31T14:11:38.052089Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","event_title":"Highest temperature in Boston on Jun 1, 2026?","chart_24h":[0.06,0.06]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN01-T64","event_id":"KXHIGHTBOS-26JUN01","slug":"KXHIGHTBOS-26JUN01-T64","question":"Will the maximum temperature be >64° on Jun 1, 2026?","group_item_title":"65° or above","description":"If the maximum temperature recorded at Boston for Jun 1, 2026, is greater than 64° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.\n\n---\n\nData for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the \"Observed Weather\" tab, and choosing the location \"Boston (Logan Airport), MA\" with Daily Climate Report selected. Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.\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 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":"2026-05-31T14:00:00Z","end_date":"2026-06-08T14:00:00Z","closed_time":"2026-06-02T05:00:00Z","volume":2993.0,"volume_24hr":2993.0,"prob_24h_change":-0.009999999999999998,"volume_24h_change":2985.0,"normalized_vol_24hr":20.778778076171875,"normalized_volume":19.863828659057617,"liquidity":null,"categories":["Climate and Weather"],"updated_at":"2026-05-31T17:05:53.981894Z","fetched_at":"2026-05-31T17:05:53.981894Z","added_at":"2026-05-31T14:11:38.052089Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-1-2026/kxhightbos-26jun01","event_title":"Highest temperature in Boston on Jun 1, 2026?","chart_24h":[0.03,0.03,0.03,0.01,0.02]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHTBOS-26JUN01","as_of":"2026-05-31T19:48:01.227154Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Boston on Jun 1, 2026?\" — top market at 2% probability across 6 outcomes","source_url":null}}