Recent National Weather Service and model consensus forecasts for Seattle on August 28 indicate a high in the upper 60s to low 70s°F under mostly cloudy skies with light southwesterly winds and a slight chance of morning showers. These conditions, driven by persistent marine air influence typical of late summer in the Pacific Northwest, have stabilized trader sentiment around the 70–73°F range, which holds over 70% implied probability. Recent model runs show minimal day-to-day shifts, with afternoon clearing expected but insufficient solar heating or offshore flow to push readings notably higher. This aligns with observed late-August climatology, where daily maxima often cluster near 72°F absent strong high-pressure ridging.
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 28?
72-73°F 41%
70-71°F 30%
68-69°F 15%
74-75°F 13%
63°F or below
<1%
64-65°F
3%
66-67°F
5%
68-69°F
15%
70-71°F
30%
72-73°F
41%
74-75°F
13%
76-77°F
5%
78-79°F
4%
80-81°F
4%
82°F or higher
<1%
72-73°F 41%
70-71°F 30%
68-69°F 15%
74-75°F 13%
63°F or below
<1%
64-65°F
3%
66-67°F
5%
68-69°F
15%
70-71°F
30%
72-73°F
41%
74-75°F
13%
76-77°F
5%
78-79°F
4%
80-81°F
4%
82°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 26, 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...Recent National Weather Service and model consensus forecasts for Seattle on August 28 indicate a high in the upper 60s to low 70s°F under mostly cloudy skies with light southwesterly winds and a slight chance of morning showers. These conditions, driven by persistent marine air influence typical of late summer in the Pacific Northwest, have stabilized trader sentiment around the 70–73°F range, which holds over 70% implied probability. Recent model runs show minimal day-to-day shifts, with afternoon clearing expected but insufficient solar heating or offshore flow to push readings notably higher. This aligns with observed late-August climatology, where daily maxima often cluster near 72°F absent strong high-pressure ridging.
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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