Recent National Weather Service and model guidance for Houston on September 26 projects a high near 91–92°F under partly sunny skies with a 20% chance of afternoon showers or thunderstorms, supporting the tight clustering of market-implied odds across the 88–93°F bins. Northeast to east winds of 5–10 mph and dew points in the mid-60s to low-70s will limit mixing and keep heat indices elevated, while increasing afternoon cloud cover or isolated convection could cap the daily maximum by 1–3°F depending on timing and coverage. Historical September climatology shows typical highs near 90°F, but current steering patterns and recent model runs introduce modest uncertainty around peak temperature thresholds, prompting traders to spread positions rather than concentrate on a single outcome. Updated NWS briefings and afternoon model cycles over the next 48 hours will refine these details ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Houston on September 26?
90-91°F 26%
88-89°F 25%
92-93°F 23%
98-99°F 14%
81°F or below
4%
82-83°F
6%
84-85°F
7%
86-87°F
7%
88-89°F
25%
90-91°F
26%
92-93°F
23%
94-95°F
12%
96-97°F
9%
98-99°F
14%
100°F or higher
6%
90-91°F 26%
88-89°F 25%
92-93°F 23%
98-99°F 14%
81°F or below
4%
82-83°F
6%
84-85°F
7%
86-87°F
7%
88-89°F
25%
90-91°F
26%
92-93°F
23%
94-95°F
12%
96-97°F
9%
98-99°F
14%
100°F or higher
6%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=khou
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 24, 2026, 3:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=khouResolver
0x69c47de9d...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=khou
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=khouResolver
0x69c47de9d...Recent National Weather Service and model guidance for Houston on September 26 projects a high near 91–92°F under partly sunny skies with a 20% chance of afternoon showers or thunderstorms, supporting the tight clustering of market-implied odds across the 88–93°F bins. Northeast to east winds of 5–10 mph and dew points in the mid-60s to low-70s will limit mixing and keep heat indices elevated, while increasing afternoon cloud cover or isolated convection could cap the daily maximum by 1–3°F depending on timing and coverage. Historical September climatology shows typical highs near 90°F, but current steering patterns and recent model runs introduce modest uncertainty around peak temperature thresholds, prompting traders to spread positions rather than concentrate on a single outcome. Updated NWS briefings and afternoon model cycles over the next 48 hours will refine these details ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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