{"source":"kalshi","id":"KXHIGHTBOS-26JUN18","ticker":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18","title":"Highest temperature in Boston on Jun 18, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":null,"volume":1623.84,"volume_24hr":1593.84,"volume_24h_change":null,"normalized_vol_24hr":17.31220817565918,"normalized_volume":14.158635139465332,"liquidity":null,"open_interest":1479.3999999999999,"categories":["Climate and Weather"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"77° to 78°","top_outcome_probability":0.35,"top_outcome_prob_24h_change":0.09999999999999998,"top_outcome_volume_24h_change":424.8,"updated_at":"2026-06-17T19:40:33.696252Z","fetched_at":"2026-06-17T19:40:33.696252Z","added_at":"2026-06-17T14:02:29.089213Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","chart_24h":[423.34000000000003,457.25,1049.25,1072.33,1093.33,1104.33,1109.33,1513.33,1593.84],"markets":[{"source":"kalshi","id":"KXHIGHTBOS-26JUN18-B77.5","event_id":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18-B77.5","question":"Will the maximum temperature be 77-78° on Jun 18, 2026?","group_item_title":"77° to 78°","description":"If the maximum temperature recorded at Boston for Jun 18, 2026, is between 77-78° 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":[0.35,0.65],"probability":0.35,"spread":0.019999999999999962,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":"2026-06-19T05:00:00Z","volume":488.24,"volume_24hr":485.24,"prob_24h_change":0.09999999999999998,"volume_24h_change":424.8,"normalized_vol_24hr":13.156046867370605,"normalized_volume":11.166769981384277,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-06-17T19:41:16.347694Z","fetched_at":"2026-06-17T19:40:33.836757Z","added_at":"2026-06-17T14:02:29.307674Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","event_title":"Highest temperature in Boston on Jun 18, 2026?","chart_24h":[0.25,0.25,0.33,0.35,0.35,0.35,0.34,0.35,0.35]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN18-B75.5","event_id":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18-B75.5","question":"Will the maximum temperature be 75-76° on Jun 18, 2026?","group_item_title":"75° to 76°","description":"If the maximum temperature recorded at Boston for Jun 18, 2026, is between 75-76° 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":[0.24,0.76],"probability":0.24,"spread":0.03,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":"2026-06-19T05:00:00Z","volume":422.0,"volume_24hr":422.0,"prob_24h_change":0.0,"volume_24h_change":222.0,"normalized_vol_24hr":12.570147514343262,"normalized_volume":10.64827823638916,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-06-17T19:41:16.347694Z","fetched_at":"2026-06-17T19:40:33.836757Z","added_at":"2026-06-17T14:02:29.307674Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","event_title":"Highest temperature in Boston on Jun 18, 2026?","chart_24h":[0.24,0.27,0.25,0.26,0.26,0.26,0.25,0.24]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN18-B79.5","event_id":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18-B79.5","question":"Will the maximum temperature be 79-80° on Jun 18, 2026?","group_item_title":"79° to 80°","description":"If the maximum temperature recorded at Boston for Jun 18, 2026, is between 79-80° 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":[0.2,0.8],"probability":0.2,"spread":0.03,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":"2026-06-19T05:00:00Z","volume":60.51,"volume_24hr":60.51,"prob_24h_change":0.2,"volume_24h_change":60.51,"normalized_vol_24hr":5.832203388214111,"normalized_volume":4.94050931930542,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-06-17T19:41:16.347694Z","fetched_at":"2026-06-17T19:40:33.836757Z","added_at":"2026-06-17T14:02:29.307674Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","event_title":"Highest temperature in Boston on Jun 18, 2026?","chart_24h":[0.0,0.0,0.0,0.0,0.0,0.0,0.19,0.19,0.2]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN18-T80","event_id":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18-T80","question":"Will the maximum temperature be >80° on Jun 18, 2026?","group_item_title":"81° or above","description":"If the maximum temperature recorded at Boston for Jun 18, 2026, is greater than 80° 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":[0.15,0.85],"probability":0.15,"spread":0.010000000000000009,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":"2026-06-19T05:00:00Z","volume":608.81,"volume_24hr":581.81,"prob_24h_change":-0.07,"volume_24h_change":418.90999999999997,"normalized_vol_24hr":13.937797546386719,"normalized_volume":11.975356101989746,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-06-17T19:41:08.757003Z","fetched_at":"2026-06-17T19:40:33.836757Z","added_at":"2026-06-17T14:02:29.307674Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","event_title":"Highest temperature in Boston on Jun 18, 2026?","chart_24h":[0.22,0.09,0.1,0.1,0.08,0.11,0.12,0.15]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN18-B73.5","event_id":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18-B73.5","question":"Will the maximum temperature be 73-74° on Jun 18, 2026?","group_item_title":"73° to 74°","description":"If the maximum temperature recorded at Boston for Jun 18, 2026, is between 73-74° 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":[0.11,0.89],"probability":0.11,"spread":0.04000000000000001,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":"2026-06-19T05:00:00Z","volume":2.0,"volume_24hr":2.0,"prob_24h_change":0.11,"volume_24h_change":2.0,"normalized_vol_24hr":0.4148545563220978,"normalized_volume":0.3514268100261688,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-06-17T15:11:01.099947Z","fetched_at":"2026-06-17T15:11:01.099947Z","added_at":"2026-06-17T14:02:29.307674Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","event_title":"Highest temperature in Boston on Jun 18, 2026?","chart_24h":[0.0,0.11,0.11]},{"source":"kalshi","id":"KXHIGHTBOS-26JUN18-T73","event_id":"KXHIGHTBOS-26JUN18","slug":"KXHIGHTBOS-26JUN18-T73","question":"Will the maximum temperature be <73° on Jun 18, 2026?","group_item_title":"72° or below","description":"If the maximum temperature recorded at Boston for Jun 18, 2026, is less than 73° 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":[0.03,0.97],"probability":0.03,"spread":0.020000000000000004,"active":true,"closed":false,"start_date":"2026-06-17T14:00:00Z","end_date":"2026-06-25T14:00:00Z","closed_time":"2026-06-19T05:00:00Z","volume":42.28,"volume_24hr":42.28,"prob_24h_change":0.03,"volume_24h_change":42.28,"normalized_vol_24hr":4.879299163818359,"normalized_volume":4.13329553604126,"liquidity":null,"categories":["Climate and Weather"],"countries":["United States"],"updated_at":"2026-06-17T19:40:33.836757Z","fetched_at":"2026-06-17T19:40:33.836757Z","added_at":"2026-06-17T14:02:29.307674Z","url":"https://kalshi.com/markets/kxhightbos/highest-temperature-in-boston-on-jun-18-2026/kxhightbos-26jun18","event_title":"Highest temperature in Boston on Jun 18, 2026?","chart_24h":[0.0,0.0,0.02,0.03,0.03,0.03,0.03,0.03]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXHIGHTBOS-26JUN18","as_of":"2026-06-17T19:46:19.308886Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"Highest temperature in Boston on Jun 18, 2026?\" — top market at 15% probability across 6 outcomes","source_url":null}}