Current forecasts from the National Weather Service and private models show Dallas minimum temperatures on September 20 stabilizing in the upper 70s under persistent southerly flow and mostly clear to partly cloudy skies, with only a slight chance of afternoon storms. This pattern reflects the absence of any significant frontal passage or cold-air advection in the latest model runs, keeping overnight lows well above seasonal norms near 69°F. Trader sentiment remains split between the sub-70°F and 88°F+ outcomes because small shifts in steering winds or cloud cover could still alter radiational cooling rates by several degrees before resolution, while the clustered mid-range probabilities capture the narrower band of expected variability around current guidance. Updated NWS briefings and 00Z model cycles over the next 48 hours will provide the key data points for refining these odds.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Dallas on September 20?
76-77°F 39%
78-79°F 31%
80-81°F 30%
74-75°F 19%
69°F or below
5%
70-71°F
7%
72-73°F
11%
74-75°F
19%
76-77°F
39%
78-79°F
31%
80-81°F
30%
82-83°F
19%
84-85°F
11%
86-87°F
7%
88°F or higher
5%
76-77°F 39%
78-79°F 31%
80-81°F 30%
74-75°F 19%
69°F or below
5%
70-71°F
7%
72-73°F
11%
74-75°F
19%
76-77°F
39%
78-79°F
31%
80-81°F
30%
82-83°F
19%
84-85°F
11%
86-87°F
7%
88°F or higher
5%
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=kdal
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 18, 2026, 3:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kdalResolver
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=kdal
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=kdalResolver
0x69c47De9D...Current forecasts from the National Weather Service and private models show Dallas minimum temperatures on September 20 stabilizing in the upper 70s under persistent southerly flow and mostly clear to partly cloudy skies, with only a slight chance of afternoon storms. This pattern reflects the absence of any significant frontal passage or cold-air advection in the latest model runs, keeping overnight lows well above seasonal norms near 69°F. Trader sentiment remains split between the sub-70°F and 88°F+ outcomes because small shifts in steering winds or cloud cover could still alter radiational cooling rates by several degrees before resolution, while the clustered mid-range probabilities capture the narrower band of expected variability around current guidance. Updated NWS briefings and 00Z model cycles over the next 48 hours will provide the key data points for refining these odds.
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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