Current forecasts from multiple models indicate a low temperature in the upper 70s for Dallas on September 20, aligning with the closely matched market probabilities around 78-81°F. Persistent southerly flow, minimal cloud cover overnight, and elevated dew points near 65-68°F are limiting radiational cooling under high pressure. Official guidance from sources like the National Weather Service shows highs near 96-99°F during the day with little change in the air mass, keeping overnight lows well above the September climatological average of 69°F. Slight model spread on exact cloud cover or wind speeds introduces modest uncertainty between the 76-77°F and 80-81°F bins, though the consensus favors the leading outcomes. Updated model runs and evening observations on September 19 will provide the final data ahead of resolution.
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 multiple models indicate a low temperature in the upper 70s for Dallas on September 20, aligning with the closely matched market probabilities around 78-81°F. Persistent southerly flow, minimal cloud cover overnight, and elevated dew points near 65-68°F are limiting radiational cooling under high pressure. Official guidance from sources like the National Weather Service shows highs near 96-99°F during the day with little change in the air mass, keeping overnight lows well above the September climatological average of 69°F. Slight model spread on exact cloud cover or wind speeds introduces modest uncertainty between the 76-77°F and 80-81°F bins, though the consensus favors the leading outcomes. Updated model runs and evening observations on September 19 will provide the final data ahead of resolution.
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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