Recent National Weather Service and model consensus forecasts indicate a high of 71–74°F for Seattle on September 8, 2026, driven by clearing skies and northerly flow following an early-September Pacific storm that cooled the region earlier in the week. This aligns with the historical average high of 72.4°F and recent daily maxima near 72–74°F, positioning the 74–75°F bin as the market leader at 46.5% implied probability. Traders appear to weigh the potential for slight afternoon warming under mostly sunny conditions against model spread and any lingering marine influence, with lower bins reflecting downside risks from cloud cover or stronger onshore flow. Updated NWS guidance and local observations in the next 48 hours will refine these probabilities ahead of 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 September 8?
74-75°F 45%
72-73°F 40%
76-77°F 10%
68-69°F 9%
63°F or below
1%
64-65°F
4%
66-67°F
6%
68-69°F
9%
70-71°F
8%
72-73°F
40%
74-75°F
45%
76-77°F
10%
78-79°F
3%
80-81°F
1%
82°F or higher
<1%
74-75°F 45%
72-73°F 40%
76-77°F 10%
68-69°F 9%
63°F or below
1%
64-65°F
4%
66-67°F
6%
68-69°F
9%
70-71°F
8%
72-73°F
40%
74-75°F
45%
76-77°F
10%
78-79°F
3%
80-81°F
1%
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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 6, 2026, 7:55 AM 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 for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 indicate a high of 71–74°F for Seattle on September 8, 2026, driven by clearing skies and northerly flow following an early-September Pacific storm that cooled the region earlier in the week. This aligns with the historical average high of 72.4°F and recent daily maxima near 72–74°F, positioning the 74–75°F bin as the market leader at 46.5% implied probability. Traders appear to weigh the potential for slight afternoon warming under mostly sunny conditions against model spread and any lingering marine influence, with lower bins reflecting downside risks from cloud cover or stronger onshore flow. Updated NWS guidance and local observations in the next 48 hours will refine these probabilities ahead of 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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