**Clear, sunny conditions under building high pressure are positioning Seattle for a daytime high near or slightly above the long-term September 8 average of ~72°F.** Official National Weather Service forecasts from the Seattle office call for mostly sunny skies after early fog, with a high near 73°F and light north-northwest winds. Multiple private and regional models converge on 72–73°F at Sea-Tac Airport and similar readings downtown, consistent with recent days of 72–74°F under similar high-pressure regimes. Traders have placed the strongest implied probability (53.5%) on 74–75°F, reflecting slight upward bias from model runs that allow for modest additional warming under full sun and weak downslope flow. The 72–73°F bin (37.5%) remains the next most favored outcome, while probabilities drop sharply above 76°F or below 72°F. No significant model disagreements or late-day changes have emerged in the past 24 hours to alter this narrow range. The market will resolve on the official highest hourly or daily maximum temperature recorded for the calendar day.
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?
Highest temperature in Seattle on September 8?
74-75°F 54%
72-73°F 37%
76-77°F 5%
70-71°F 3%
$14,408 Vol.
$14,408 Vol.
Sep 8, 2026
63°F or below
<1%
64-65°F
<1%
66-67°F
<1%
68-69°F
<1%
70-71°F
3%
72-73°F
37%
74-75°F
54%
76-77°F
5%
78-79°F
2%
80-81°F
<1%
82°F or higher
<1%
74-75°F 54%
72-73°F 37%
76-77°F 5%
70-71°F 3%
$14,408 Vol.
$14,408 Vol.
Sep 8, 2026
63°F or below
$1,933 Vol.
<1%
64-65°F
$301 Vol.
<1%
66-67°F
$258 Vol.
<1%
68-69°F
$750 Vol.
<1%
70-71°F
$799 Vol.
3%
72-73°F
$4,751 Vol.
37%
74-75°F
$2,859 Vol.
54%
76-77°F
$1,466 Vol.
5%
78-79°F
$694 Vol.
2%
80-81°F
$365 Vol.
<1%
82°F or higher
$232 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 8 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.**Clear, sunny conditions under building high pressure are positioning Seattle for a daytime high near or slightly above the long-term September 8 average of ~72°F.** Official National Weather Service forecasts from the Seattle office call for mostly sunny skies after early fog, with a high near 73°F and light north-northwest winds. Multiple private and regional models converge on 72–73°F at Sea-Tac Airport and similar readings downtown, consistent with recent days of 72–74°F under similar high-pressure regimes.
Traders have placed the strongest implied probability (53.5%) on 74–75°F, reflecting slight upward bias from model runs that allow for modest additional warming under full sun and weak downslope flow. The 72–73°F bin (37.5%) remains the next most favored outcome, while probabilities drop sharply above 76°F or below 72°F. No significant model disagreements or late-day changes have emerged in the past 24 hours to alter this narrow range. The market will resolve on the official highest hourly or daily maximum temperature recorded for the calendar day.
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 8 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 6, 2026, 7:55 AM ET
Volume
$14,408End Date
Sep 8, 2026Market Opened
Sep 6, 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 8 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.**Clear, sunny conditions under building high pressure are positioning Seattle for a daytime high near or slightly above the long-term September 8 average of ~72°F.** Official National Weather Service forecasts from the Seattle office call for mostly sunny skies after early fog, with a high near 73°F and light north-northwest winds. Multiple private and regional models converge on 72–73°F at Sea-Tac Airport and similar readings downtown, consistent with recent days of 72–74°F under similar high-pressure regimes.
Traders have placed the strongest implied probability (53.5%) on 74–75°F, reflecting slight upward bias from model runs that allow for modest additional warming under full sun and weak downslope flow. The 72–73°F bin (37.5%) remains the next most favored outcome, while probabilities drop sharply above 76°F or below 72°F. No significant model disagreements or late-day changes have emerged in the past 24 hours to alter this narrow range. The market will resolve on the official highest hourly or daily maximum temperature recorded for the calendar day.
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 8 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
$14,408End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...**Clear, sunny conditions under building high pressure are positioning Seattle for a daytime high near or slightly above the long-term September 8 average of ~72°F.** Official National Weather Service forecasts from the Seattle office call for mostly sunny skies after early fog, with a high near 73°F and light north-northwest winds. Multiple private and regional models converge on 72–73°F at Sea-Tac Airport and similar readings downtown, consistent with recent days of 72–74°F under similar high-pressure regimes. Traders have placed the strongest implied probability (53.5%) on 74–75°F, reflecting slight upward bias from model runs that allow for modest additional warming under full sun and weak downslope flow. The 72–73°F bin (37.5%) remains the next most favored outcome, while probabilities drop sharply above 76°F or below 72°F. No significant model disagreements or late-day changes have emerged in the past 24 hours to alter this narrow range. The market will resolve on the official highest hourly or daily maximum temperature recorded for the calendar day.
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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Frequently Asked Questions