Forecasts from the National Weather Service and supporting models indicate overnight lows in Austin on September 13 will likely settle in the mid to upper 70s°F under continued southerly flow and elevated dew points near 75°F, limiting radiative cooling. Persistent high pressure and warm advection have kept recent minima well above the 1991–2020 average low of 68.7°F for the date. Trader sentiment remains dispersed across bins because small shifts in cloud cover, wind speed, or boundary-layer mixing—common variables in late-summer subtropical regimes—could push the minimum a few degrees either side of 77–80°F. Model consensus shows low precipitation risk and steady southerly winds of 5–10 mph through the night, with the next significant update expected from the evening NWS forecast package.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Austin on September 13?
88°F or higher 59%
69°F or below 58%
84-85°F 39%
86-87°F 39%
69°F or below
58%
70-71°F
16%
72-73°F
21%
74-75°F
24%
76-77°F
27%
78-79°F
26%
80-81°F
22%
82-83°F
38%
84-85°F
39%
86-87°F
39%
88°F or higher
59%
88°F or higher 59%
69°F or below 58%
84-85°F 39%
86-87°F 39%
69°F or below
58%
70-71°F
16%
72-73°F
21%
74-75°F
24%
76-77°F
27%
78-79°F
26%
80-81°F
22%
82-83°F
38%
84-85°F
39%
86-87°F
39%
88°F or higher
59%
The resolution source for this market will be information from NOAA, specifically the lowest 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 11, 2026, 3:30 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 lowest 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 the National Weather Service and supporting models indicate overnight lows in Austin on September 13 will likely settle in the mid to upper 70s°F under continued southerly flow and elevated dew points near 75°F, limiting radiative cooling. Persistent high pressure and warm advection have kept recent minima well above the 1991–2020 average low of 68.7°F for the date. Trader sentiment remains dispersed across bins because small shifts in cloud cover, wind speed, or boundary-layer mixing—common variables in late-summer subtropical regimes—could push the minimum a few degrees either side of 77–80°F. Model consensus shows low precipitation risk and steady southerly winds of 5–10 mph through the night, with the next significant update expected from the evening NWS forecast package.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions