Official observations from the National Weather Service at Houston Intercontinental Airport recorded a daily maximum of 94°F on September 18, 2026, aligning closely with the market’s overwhelming 100% consensus on the 92-93°F bin. Persistent high pressure, clear skies, and light winds under a late-summer pattern suppressed cloud cover and allowed strong solar heating, pushing temperatures several degrees above the 1991-2020 normal high of 90°F. Recent model runs and surface analyses showed minimal variability in peak readings across metro stations, reinforcing trader confidence that the outcome would settle in the low 90s. A shift in steering winds or unexpected moisture intrusion could have altered the result, yet none materialized before the daily maximum was reached.
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 18?
Highest temperature in Houston on September 18?
92-93°F 100%
81°F or below <1%
82-83°F <1%
84-85°F <1%
$34,813 Vol.
$34,813 Vol.
Sep 18, 2026
81°F or below
No
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
No
92-93°F
Yes
94-95°F
No
96-97°F
No
98-99°F
No
100°F or higher
No
92-93°F 100%
81°F or below <1%
82-83°F <1%
84-85°F <1%
$34,813 Vol.
$34,813 Vol.
Sep 18, 2026
81°F or below
$771 Vol.
No
82-83°F
$718 Vol.
No
84-85°F
$301 Vol.
No
86-87°F
$264 Vol.
No
88-89°F
$410 Vol.
No
90-91°F
$6,747 Vol.
No
92-93°F
$12,071 Vol.
Yes
94-95°F
$7,514 Vol.
No
96-97°F
$2,531 Vol.
No
98-99°F
$929 Vol.
No
100°F or higher
$2,557 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the William P. Hobby Airport Station in degrees Fahrenheit on 18 Sep '26.
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.Official observations from the National Weather Service at Houston Intercontinental Airport recorded a daily maximum of 94°F on September 18, 2026, aligning closely with the market’s overwhelming 100% consensus on the 92-93°F bin. Persistent high pressure, clear skies, and light winds under a late-summer pattern suppressed cloud cover and allowed strong solar heating, pushing temperatures several degrees above the 1991-2020 normal high of 90°F. Recent model runs and surface analyses showed minimal variability in peak readings across metro stations, reinforcing trader confidence that the outcome would settle in the low 90s. A shift in steering winds or unexpected moisture intrusion could have altered the result, yet none materialized before the daily maximum was reached.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the William P. Hobby Airport Station in degrees Fahrenheit on 18 Sep '26.
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.
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 16, 2026, 3:56 AM ET
Volume
$34,813End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 3:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=khouResolver
0x69c47de9d...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the William P. Hobby Airport Station in degrees Fahrenheit on 18 Sep '26.
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.Official observations from the National Weather Service at Houston Intercontinental Airport recorded a daily maximum of 94°F on September 18, 2026, aligning closely with the market’s overwhelming 100% consensus on the 92-93°F bin. Persistent high pressure, clear skies, and light winds under a late-summer pattern suppressed cloud cover and allowed strong solar heating, pushing temperatures several degrees above the 1991-2020 normal high of 90°F. Recent model runs and surface analyses showed minimal variability in peak readings across metro stations, reinforcing trader confidence that the outcome would settle in the low 90s. A shift in steering winds or unexpected moisture intrusion could have altered the result, yet none materialized before the daily maximum was reached.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the William P. Hobby Airport Station in degrees Fahrenheit on 18 Sep '26.
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.
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.
Volume
$34,813End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 3:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=khouResolver
0x69c47de9d...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the National Weather Service at Houston Intercontinental Airport recorded a daily maximum of 94°F on September 18, 2026, aligning closely with the market’s overwhelming 100% consensus on the 92-93°F bin. Persistent high pressure, clear skies, and light winds under a late-summer pattern suppressed cloud cover and allowed strong solar heating, pushing temperatures several degrees above the 1991-2020 normal high of 90°F. Recent model runs and surface analyses showed minimal variability in peak readings across metro stations, reinforcing trader confidence that the outcome would settle in the low 90s. A shift in steering winds or unexpected moisture intrusion could have altered the result, yet none materialized before the daily maximum was reached.
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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