Latest National Weather Service and ensemble model guidance point to an overnight low near 56–59°F in Seattle on August 25, driven by a stable marine air mass with light winds and partial clearing that allows moderate radiative cooling after daytime highs in the low-to-mid 80s. Seattle’s Puget Sound location and typical late-summer climatology (historical average minimum ~57°F) keep extremes unlikely, while minor variations in cloud cover, dew-point depression, or urban heat-island effects create the narrow spread among the three leading bins. Traders are weighting model consensus against the inherent 2–4°F uncertainty range in 24-hour temperature forecasts, producing closely matched implied probabilities.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Seattle on August 25?
56-57°F 35%
58-59°F 35%
60-61°F 31%
54-55°F 10%
49°F or below
<1%
50-51°F
8%
52-53°F
7%
54-55°F
10%
56-57°F
35%
58-59°F
35%
60-61°F
31%
62-63°F
8%
64-65°F
2%
66-67°F
<1%
68°F or higher
<1%
56-57°F 35%
58-59°F 35%
60-61°F 31%
54-55°F 10%
49°F or below
<1%
50-51°F
8%
52-53°F
7%
54-55°F
10%
56-57°F
35%
58-59°F
35%
60-61°F
31%
62-63°F
8%
64-65°F
2%
66-67°F
<1%
68°F or higher
<1%
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=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, 9:29 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 lowest 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...Latest National Weather Service and ensemble model guidance point to an overnight low near 56–59°F in Seattle on August 25, driven by a stable marine air mass with light winds and partial clearing that allows moderate radiative cooling after daytime highs in the low-to-mid 80s. Seattle’s Puget Sound location and typical late-summer climatology (historical average minimum ~57°F) keep extremes unlikely, while minor variations in cloud cover, dew-point depression, or urban heat-island effects create the narrow spread among the three leading bins. Traders are weighting model consensus against the inherent 2–4°F uncertainty range in 24-hour temperature forecasts, producing closely matched implied probabilities.
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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