Official National Weather Service forecasts and ensemble model consensus for Seattle on August 31, 2026, indicate an overnight low in the mid to upper 50s under partly cloudy skies with light northerly winds, aligning closely with the climatological average of 55.4°F and positioning the 56-57°F range as the dominant outcome. Recent surface observations show stable conditions with no anomalous cold advection or marine layer strengthening that would push temperatures toward the lower-probability bins below 52°F. Upcoming model updates from NOAA will refine timing of any clearing overnight, but current guidance shows minimal spread, sustaining trader confidence in the narrow 56-57°F band over broader historical variability.
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 31?
Lowest temperature in Seattle on August 31?
56-57°F 99%
50-51°F 44%
52-53°F 21%
47°F or below 7%
$1,424 Vol.
$1,424 Vol.
Aug 31, 2026
47°F or below
7%
48-49°F
6%
50-51°F
44%
52-53°F
21%
54-55°F
2%
56-57°F
99%
58-59°F
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66°F or higher
<1%
56-57°F 99%
50-51°F 44%
52-53°F 21%
47°F or below 7%
$1,424 Vol.
$1,424 Vol.
Aug 31, 2026
47°F or below
$54 Vol.
7%
48-49°F
$27 Vol.
6%
50-51°F
$27 Vol.
44%
52-53°F
$39 Vol.
21%
54-55°F
$27 Vol.
2%
56-57°F
$252 Vol.
99%
58-59°F
$110 Vol.
<1%
60-61°F
$274 Vol.
<1%
62-63°F
$212 Vol.
<1%
64-65°F
$80 Vol.
<1%
66°F or higher
$322 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
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.
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.Official National Weather Service forecasts and ensemble model consensus for Seattle on August 31, 2026, indicate an overnight low in the mid to upper 50s under partly cloudy skies with light northerly winds, aligning closely with the climatological average of 55.4°F and positioning the 56-57°F range as the dominant outcome. Recent surface observations show stable conditions with no anomalous cold advection or marine layer strengthening that would push temperatures toward the lower-probability bins below 52°F. Upcoming model updates from NOAA will refine timing of any clearing overnight, but current guidance shows minimal spread, sustaining trader confidence in the narrow 56-57°F band over broader historical variability.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
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.
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.
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.
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.
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 29, 2026, 7:29 AM ET
Volume
$1,424End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 7:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
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.
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.Official National Weather Service forecasts and ensemble model consensus for Seattle on August 31, 2026, indicate an overnight low in the mid to upper 50s under partly cloudy skies with light northerly winds, aligning closely with the climatological average of 55.4°F and positioning the 56-57°F range as the dominant outcome. Recent surface observations show stable conditions with no anomalous cold advection or marine layer strengthening that would push temperatures toward the lower-probability bins below 52°F. Upcoming model updates from NOAA will refine timing of any clearing overnight, but current guidance shows minimal spread, sustaining trader confidence in the narrow 56-57°F band over broader historical variability.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
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.
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.
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.
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.
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.
Volume
$1,424End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 7:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...Official National Weather Service forecasts and ensemble model consensus for Seattle on August 31, 2026, indicate an overnight low in the mid to upper 50s under partly cloudy skies with light northerly winds, aligning closely with the climatological average of 55.4°F and positioning the 56-57°F range as the dominant outcome. Recent surface observations show stable conditions with no anomalous cold advection or marine layer strengthening that would push temperatures toward the lower-probability bins below 52°F. Upcoming model updates from NOAA will refine timing of any clearing overnight, but current guidance shows minimal spread, sustaining trader confidence in the narrow 56-57°F band over broader historical variability.
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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