Recent National Weather Service and model guidance indicate a high of 65–68°F for Seattle on September 14, driven by lingering marine influence and light southerly flow following overnight rain on the 13th. Overcast to partly sunny skies with minimal daytime heating and dew points in the mid-50s limit afternoon warming, keeping readings near or slightly below the seasonal average of 71°F. Ensemble forecasts show tight clustering around this range, with only modest potential for brief clearing to push toward 68–69°F. Trader consensus reflected in the 49.5% and 36.5% probabilities on the 66–67°F and 68–69°F bins aligns closely with these official projections, while lower-probability outcomes account for typical forecast uncertainty in coastal temperature verification.
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 14?
66-67°F 50%
68-69°F 37%
64-65°F 8%
70-71°F 7%
57°F or below
1%
58-59°F
1%
60-61°F
2%
62-63°F
3%
64-65°F
8%
66-67°F
50%
68-69°F
37%
70-71°F
7%
72-73°F
3%
74-75°F
1%
76°F or higher
<1%
66-67°F 50%
68-69°F 37%
64-65°F 8%
70-71°F 7%
57°F or below
1%
58-59°F
1%
60-61°F
2%
62-63°F
3%
64-65°F
8%
66-67°F
50%
68-69°F
37%
70-71°F
7%
72-73°F
3%
74-75°F
1%
76°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 12, 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 guidance indicate a high of 65–68°F for Seattle on September 14, driven by lingering marine influence and light southerly flow following overnight rain on the 13th. Overcast to partly sunny skies with minimal daytime heating and dew points in the mid-50s limit afternoon warming, keeping readings near or slightly below the seasonal average of 71°F. Ensemble forecasts show tight clustering around this range, with only modest potential for brief clearing to push toward 68–69°F. Trader consensus reflected in the 49.5% and 36.5% probabilities on the 66–67°F and 68–69°F bins aligns closely with these official projections, while lower-probability outcomes account for typical forecast uncertainty in coastal temperature verification.
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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