Recent National Weather Service and AccuWeather model runs indicate Seattle highs on August 25 will likely fall in the low-to-mid 80s amid a transitional Pacific Northwest pattern featuring scattered showers and onshore flow that moderates afternoon temperatures. This follows a stretch of cooler conditions August 22–25 after an unusually warm summer driven by strengthening El Niño conditions and above-average sea-surface temperatures. Historical August averages near 74–79°F at Sea-Tac provide context, yet 2026’s persistent warmth keeps the upper end of the distribution in play. Traders’ clustering around the 82–85°F bins reflects consensus on limited daytime heating potential before a sunnier, warmer regime returns later in the week; updated NWS forecasts and ensemble guidance will refine the exact peak.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Seattle on August 25?
84-85°F 38%
82-83°F 32%
86-87°F 18%
80-81°F 8%
77°F or below
1%
78-79°F
1%
80-81°F
8%
82-83°F
32%
84-85°F
38%
86-87°F
18%
88-89°F
5%
90-91°F
2%
92-93°F
<1%
94-95°F
<1%
96°F or higher
<1%
84-85°F 38%
82-83°F 32%
86-87°F 18%
80-81°F 8%
77°F or below
1%
78-79°F
1%
80-81°F
8%
82-83°F
32%
84-85°F
38%
86-87°F
18%
88-89°F
5%
90-91°F
2%
92-93°F
<1%
94-95°F
<1%
96°F or higher
<1%
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=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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 23, 2026, 8:56 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
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=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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=kseaResolver
0x69c47De9D...Recent National Weather Service and AccuWeather model runs indicate Seattle highs on August 25 will likely fall in the low-to-mid 80s amid a transitional Pacific Northwest pattern featuring scattered showers and onshore flow that moderates afternoon temperatures. This follows a stretch of cooler conditions August 22–25 after an unusually warm summer driven by strengthening El Niño conditions and above-average sea-surface temperatures. Historical August averages near 74–79°F at Sea-Tac provide context, yet 2026’s persistent warmth keeps the upper end of the distribution in play. Traders’ clustering around the 82–85°F bins reflects consensus on limited daytime heating potential before a sunnier, warmer regime returns later in the week; updated NWS forecasts and ensemble guidance will refine the exact peak.
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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