Recent National Weather Service guidance and ensemble model runs indicate a post-frontal regime over western Washington, with lingering marine air and cloud cover limiting daytime heating on September 3. Official forecasts place Seattle-Tacoma International Airport highs in the mid-60s, consistent with the market’s tight clustering around 64–67 °F. Southerly flow ahead of an upper-level low supports scattered showers and a slight thunderstorm risk that further caps temperatures below the 73.6 °F September 3 climatological average. Real-time surface observations and afternoon model updates from NOAA will determine whether the daily maximum settles in the 64–65 °F or 66–67 °F bin, the two leading outcomes reflecting modest remaining forecast spread.
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 3?
Highest temperature in Seattle on September 3?
64-65°F 42%
66-67°F 31%
62-63°F 19%
68-69°F 6%
NEW
$11,200 Vol.
NEW
$11,200 Vol.
Sep 3, 2026
55°F or below
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
4%
62-63°F
19%
64-65°F
42%
66-67°F
31%
68-69°F
6%
70-71°F
1%
72-73°F
<1%
74°F or higher
<1%
64-65°F 42%
66-67°F 31%
62-63°F 19%
68-69°F 6%
NEW
$11,200 Vol.
NEW
$11,200 Vol.
Sep 3, 2026
55°F or below
$319 Vol.
<1%
56-57°F
$943 Vol.
<1%
58-59°F
$248 Vol.
<1%
60-61°F
$513 Vol.
4%
62-63°F
$1,387 Vol.
19%
64-65°F
$3,686 Vol.
42%
66-67°F
$1,963 Vol.
31%
68-69°F
$466 Vol.
6%
70-71°F
$804 Vol.
1%
72-73°F
$355 Vol.
<1%
74°F or higher
$513 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 3 Sep '26.
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.Recent National Weather Service guidance and ensemble model runs indicate a post-frontal regime over western Washington, with lingering marine air and cloud cover limiting daytime heating on September 3. Official forecasts place Seattle-Tacoma International Airport highs in the mid-60s, consistent with the market’s tight clustering around 64–67 °F. Southerly flow ahead of an upper-level low supports scattered showers and a slight thunderstorm risk that further caps temperatures below the 73.6 °F September 3 climatological average. Real-time surface observations and afternoon model updates from NOAA will determine whether the daily maximum settles in the 64–65 °F or 66–67 °F bin, the two leading outcomes reflecting modest remaining forecast spread.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 3 Sep '26.
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.
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 1, 2026, 7:55 AM ET
Volume
$11,200End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 3 Sep '26.
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.Recent National Weather Service guidance and ensemble model runs indicate a post-frontal regime over western Washington, with lingering marine air and cloud cover limiting daytime heating on September 3. Official forecasts place Seattle-Tacoma International Airport highs in the mid-60s, consistent with the market’s tight clustering around 64–67 °F. Southerly flow ahead of an upper-level low supports scattered showers and a slight thunderstorm risk that further caps temperatures below the 73.6 °F September 3 climatological average. Real-time surface observations and afternoon model updates from NOAA will determine whether the daily maximum settles in the 64–65 °F or 66–67 °F bin, the two leading outcomes reflecting modest remaining forecast spread.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 3 Sep '26.
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.
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.
Volume
$11,200End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...Recent National Weather Service guidance and ensemble model runs indicate a post-frontal regime over western Washington, with lingering marine air and cloud cover limiting daytime heating on September 3. Official forecasts place Seattle-Tacoma International Airport highs in the mid-60s, consistent with the market’s tight clustering around 64–67 °F. Southerly flow ahead of an upper-level low supports scattered showers and a slight thunderstorm risk that further caps temperatures below the 73.6 °F September 3 climatological average. Real-time surface observations and afternoon model updates from NOAA will determine whether the daily maximum settles in the 64–65 °F or 66–67 °F bin, the two leading outcomes reflecting modest remaining forecast spread.
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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