Forecast models from the National Weather Service and major ensembles show Austin under persistent high pressure with clear skies and light southerly flow on September 19, supporting afternoon highs in the mid-to-upper 90s. This setup favors strong daytime heating with minimal cloud cover or moisture to limit insolation, though slight model spread in boundary-layer mixing and dew points creates uncertainty between 96–97°F and 98–99°F bins. Recent stable ridging across the southern Plains has kept temperatures several degrees above the 90°F climatological average, and the absence of frontal passages or Gulf moisture through the weekend reinforces trader consensus on these central outcomes ahead of final observational data.
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 19?
96-97°F 32%
98-99°F 27%
94-95°F 16%
92-93°F 9%
87°F or below
3%
88-89°F
3%
90-91°F
8%
92-93°F
9%
94-95°F
16%
96-97°F
32%
98-99°F
34%
100-101°F
8%
102-103°F
9%
104-105°F
4%
106°F or higher
4%
96-97°F 32%
98-99°F 27%
94-95°F 16%
92-93°F 9%
87°F or below
3%
88-89°F
3%
90-91°F
8%
92-93°F
9%
94-95°F
16%
96-97°F
32%
98-99°F
34%
100-101°F
8%
102-103°F
9%
104-105°F
4%
106°F or higher
4%
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 17, 2026, 2:56 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...Forecast models from the National Weather Service and major ensembles show Austin under persistent high pressure with clear skies and light southerly flow on September 19, supporting afternoon highs in the mid-to-upper 90s. This setup favors strong daytime heating with minimal cloud cover or moisture to limit insolation, though slight model spread in boundary-layer mixing and dew points creates uncertainty between 96–97°F and 98–99°F bins. Recent stable ridging across the southern Plains has kept temperatures several degrees above the 90°F climatological average, and the absence of frontal passages or Gulf moisture through the weekend reinforces trader consensus on these central outcomes ahead of final observational data.
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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