Latest National Weather Service and local model guidance point to a Seattle high near 79°F on August 26, with afternoon marine-layer influence and light southwesterly flow limiting further warming. This places the outcome squarely in the tightly bunched 72–81°F market tiers, each at 25% implied probability. Seattle’s late-August climatology shows daily highs declining from early-month peaks near 79°F toward 75°F, with rare excursions above 85°F after the 20th. Recent ensemble runs exhibit modest spread from variable cloud cover and Puget Sound sea-breeze timing, sustaining uncertainty across the central bins while keeping extremes below 10%. Updated NWS and NOAA short-range forecasts issued overnight will serve as the final catalyst before resolution.
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 26?
78-79°F 30%
76-77°F 25%
74-75°F 24%
80-81°F 12%
71°F or below
5%
72-73°F
9%
74-75°F
24%
76-77°F
29%
78-79°F
30%
80-81°F
12%
82-83°F
5%
84-85°F
6%
86-87°F
5%
88-89°F
4%
90°F or higher
1%
78-79°F 30%
76-77°F 25%
74-75°F 24%
80-81°F 12%
71°F or below
5%
72-73°F
9%
74-75°F
24%
76-77°F
29%
78-79°F
30%
80-81°F
12%
82-83°F
5%
84-85°F
6%
86-87°F
5%
88-89°F
4%
90°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.
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 24, 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.
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=kseaResolver
0x69c47De9D...Latest National Weather Service and local model guidance point to a Seattle high near 79°F on August 26, with afternoon marine-layer influence and light southwesterly flow limiting further warming. This places the outcome squarely in the tightly bunched 72–81°F market tiers, each at 25% implied probability. Seattle’s late-August climatology shows daily highs declining from early-month peaks near 79°F toward 75°F, with rare excursions above 85°F after the 20th. Recent ensemble runs exhibit modest spread from variable cloud cover and Puget Sound sea-breeze timing, sustaining uncertainty across the central bins while keeping extremes below 10%. Updated NWS and NOAA short-range forecasts issued overnight will serve as the final catalyst before 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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