Current National Weather Service forecasts and model consensus indicate a high near 67°F in Seattle on September 12, driven by persistent marine layer cloud cover, light southwesterly winds, and a 60% chance of light rain that limits solar heating. This setup follows several warmer, partly sunny days earlier in the month with highs in the 70s to low 80s. The pattern reflects typical early autumn transition, with increased cloudiness and moisture ahead of a weak frontal system suppressing temperatures slightly below the 71°F historical average for the date. Key variables differentiating close market outcomes around 64–69°F include exact timing of any clearing, precipitation intensity, and boundary layer mixing. Updated NWS guidance and short-range model runs over the next 48 hours will refine these details ahead of market 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 12?
Highest temperature in Seattle on September 12?
66-67°F 40%
64-65°F 38%
68-69°F 20%
70-71°F 10%
NEW
NEW
Sep 12, 2026
57°F or below
4%
58-59°F
5%
60-61°F
7%
62-63°F
7%
64-65°F
38%
66-67°F
40%
68-69°F
20%
70-71°F
10%
72-73°F
4%
74-75°F
2%
76°F or higher
2%
66-67°F 40%
64-65°F 38%
68-69°F 20%
70-71°F 10%
NEW
NEW
Sep 12, 2026
57°F or below
$0 Vol.
4%
58-59°F
$0 Vol.
5%
60-61°F
$0 Vol.
7%
62-63°F
$0 Vol.
7%
64-65°F
$0 Vol.
38%
66-67°F
$0 Vol.
40%
68-69°F
$0 Vol.
20%
70-71°F
$0 Vol.
10%
72-73°F
$0 Vol.
4%
74-75°F
$0 Vol.
2%
76°F or higher
$0 Vol.
2%
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 12 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.Current National Weather Service forecasts and model consensus indicate a high near 67°F in Seattle on September 12, driven by persistent marine layer cloud cover, light southwesterly winds, and a 60% chance of light rain that limits solar heating. This setup follows several warmer, partly sunny days earlier in the month with highs in the 70s to low 80s. The pattern reflects typical early autumn transition, with increased cloudiness and moisture ahead of a weak frontal system suppressing temperatures slightly below the 71°F historical average for the date. Key variables differentiating close market outcomes around 64–69°F include exact timing of any clearing, precipitation intensity, and boundary layer mixing. Updated NWS guidance and short-range model runs over the next 48 hours will refine these details ahead of market resolution.
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 12 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 10, 2026, 7:55 AM ET
Volume
$0End Date
Sep 12, 2026Market Opened
Sep 10, 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 12 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.Current National Weather Service forecasts and model consensus indicate a high near 67°F in Seattle on September 12, driven by persistent marine layer cloud cover, light southwesterly winds, and a 60% chance of light rain that limits solar heating. This setup follows several warmer, partly sunny days earlier in the month with highs in the 70s to low 80s. The pattern reflects typical early autumn transition, with increased cloudiness and moisture ahead of a weak frontal system suppressing temperatures slightly below the 71°F historical average for the date. Key variables differentiating close market outcomes around 64–69°F include exact timing of any clearing, precipitation intensity, and boundary layer mixing. Updated NWS guidance and short-range model runs over the next 48 hours will refine these details ahead of market resolution.
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 12 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
$0End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...Current National Weather Service forecasts and model consensus indicate a high near 67°F in Seattle on September 12, driven by persistent marine layer cloud cover, light southwesterly winds, and a 60% chance of light rain that limits solar heating. This setup follows several warmer, partly sunny days earlier in the month with highs in the 70s to low 80s. The pattern reflects typical early autumn transition, with increased cloudiness and moisture ahead of a weak frontal system suppressing temperatures slightly below the 71°F historical average for the date. Key variables differentiating close market outcomes around 64–69°F include exact timing of any clearing, precipitation intensity, and boundary layer mixing. Updated NWS guidance and short-range model runs over the next 48 hours will refine these details ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions