Forecasts from multiple sources, including WeatherBug and regional models, indicate a high near 101–102°F for Austin on September 12 under mostly sunny skies, light southerly winds, and dew points around 70–73°F. This setup supports strong afternoon heating but limits further intensification due to modest mixing and no significant frontal passage. The close split between 100–101°F and 102–103°F outcomes reflects minor model differences in peak timing and exact cloud cover, with official readings from Austin-Bergstrom International Airport serving as the resolution source. Historical September averages near 92°F and the date’s 102°F record underscore the elevated but plausible range amid ongoing late-summer warmth.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Austin on September 12?
102-103°F 44%
100-101°F 37%
104-105°F 13%
98-99°F 5%
$14,759 Vol.
$14,759 Vol.
91°F or below
<1%
92-93°F
<1%
94-95°F
<1%
96-97°F
1%
98-99°F
5%
100-101°F
37%
102-103°F
44%
104-105°F
13%
106-107°F
3%
108-109°F
<1%
110°F or higher
<1%
102-103°F 44%
100-101°F 37%
104-105°F 13%
98-99°F 5%
$14,759 Vol.
$14,759 Vol.
91°F or below
<1%
92-93°F
<1%
94-95°F
<1%
96-97°F
1%
98-99°F
5%
100-101°F
37%
102-103°F
44%
104-105°F
13%
106-107°F
3%
108-109°F
<1%
110°F or higher
<1%
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=kaus
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 10, 2026, 3:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kausResolver
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=kaus
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=kausResolver
0x69c47De9D...Forecasts from multiple sources, including WeatherBug and regional models, indicate a high near 101–102°F for Austin on September 12 under mostly sunny skies, light southerly winds, and dew points around 70–73°F. This setup supports strong afternoon heating but limits further intensification due to modest mixing and no significant frontal passage. The close split between 100–101°F and 102–103°F outcomes reflects minor model differences in peak timing and exact cloud cover, with official readings from Austin-Bergstrom International Airport serving as the resolution source. Historical September averages near 92°F and the date’s 102°F record underscore the elevated but plausible range amid ongoing late-summer warmth.
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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Frequently Asked Questions