Recent National Weather Service and ensemble model guidance positions Dallas for mostly sunny skies and a high near 99–100°F on August 28, with heat-index values reaching 106–109°F under light easterly flow. This consensus, only modestly cooler than the prior day’s 101–103°F readings amid persistent high pressure and minimal cloud cover, underpins trader concentration on the 98–99°F and 100–101°F bins. Historical climatology shows an average high of 94.6°F and a record of 107°F, yet current steering patterns and dew-point forecasts limit upside risk above 101°F while keeping sub-98°F outcomes unlikely absent an unexpected frontal passage. Updated NWS briefings and afternoon model runs remain the key near-term catalysts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Dallas on August 28?
98-99°F 54%
100-101°F 30%
96-97°F 14%
102-103°F 5%
91°F or below
<1%
92-93°F
4%
94-95°F
2%
96-97°F
14%
98-99°F
54%
100-101°F
30%
102-103°F
5%
104-105°F
3%
106-107°F
3%
108-109°F
3%
110°F or higher
3%
98-99°F 54%
100-101°F 30%
96-97°F 14%
102-103°F 5%
91°F or below
<1%
92-93°F
4%
94-95°F
2%
96-97°F
14%
98-99°F
54%
100-101°F
30%
102-103°F
5%
104-105°F
3%
106-107°F
3%
108-109°F
3%
110°F or higher
3%
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=kdal
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 26, 2026, 8:56 PM 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 highest 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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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...Recent National Weather Service and ensemble model guidance positions Dallas for mostly sunny skies and a high near 99–100°F on August 28, with heat-index values reaching 106–109°F under light easterly flow. This consensus, only modestly cooler than the prior day’s 101–103°F readings amid persistent high pressure and minimal cloud cover, underpins trader concentration on the 98–99°F and 100–101°F bins. Historical climatology shows an average high of 94.6°F and a record of 107°F, yet current steering patterns and dew-point forecasts limit upside risk above 101°F while keeping sub-98°F outcomes unlikely absent an unexpected frontal passage. Updated NWS briefings and afternoon model runs remain the key near-term catalysts.
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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