**Marine layer influence and lingering moisture from recent showers are capping daytime heating in Seattle, driving market-implied odds toward a maximum temperature of 68–71°F on August 30.** Official forecasts from sources including WeatherBug, US Harbors, and the Met Office project highs in the mid-60s to low-70s under mostly cloudy skies, with limited solar insolation due to persistent onshore flow from the Pacific and residual boundary-layer moisture after Saturday’s showers and isolated thunderstorms. Light winds and a stable marine layer further suppress warming, keeping readings below the long-term August 30 average high of ~75°F at Seattle-Tacoma International Airport. Model consensus aligns on this cooler regime, with any afternoon clearing potentially allowing brief rises near 72°F but unlikely to exceed it significantly. The market’s heavy weighting on the 70–71°F bin (48.5%) followed by 68–69°F (33%) reflects trader assessment of these atmospheric conditions, while lower probabilities for 72°F+ or sub-68°F outcomes account for modest forecast uncertainty in cloud timing and marine-layer depth. New observational data and updated model runs over the next 24 hours will refine these probabilities ahead of 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 August 30?
Highest temperature in Seattle on August 30?
70-71°F 49%
68-69°F 33%
72-73°F 14%
66-67°F 5%
NEW
NEW
Aug 30, 2026
59°F or below
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
2%
66-67°F
5%
68-69°F
33%
70-71°F
49%
72-73°F
14%
74-75°F
3%
76-77°F
<1%
78°F or higher
<1%
70-71°F 49%
68-69°F 33%
72-73°F 14%
66-67°F 5%
NEW
NEW
Aug 30, 2026
59°F or below
$136 Vol.
<1%
60-61°F
$111 Vol.
<1%
62-63°F
$146 Vol.
<1%
64-65°F
$154 Vol.
2%
66-67°F
$358 Vol.
5%
68-69°F
$934 Vol.
33%
70-71°F
$1,382 Vol.
49%
72-73°F
$482 Vol.
14%
74-75°F
$193 Vol.
3%
76-77°F
$111 Vol.
<1%
78°F or higher
$278 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 30 Aug '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.
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.**Marine layer influence and lingering moisture from recent showers are capping daytime heating in Seattle, driving market-implied odds toward a maximum temperature of 68–71°F on August 30.** Official forecasts from sources including WeatherBug, US Harbors, and the Met Office project highs in the mid-60s to low-70s under mostly cloudy skies, with limited solar insolation due to persistent onshore flow from the Pacific and residual boundary-layer moisture after Saturday’s showers and isolated thunderstorms. Light winds and a stable marine layer further suppress warming, keeping readings below the long-term August 30 average high of ~75°F at Seattle-Tacoma International Airport.
Model consensus aligns on this cooler regime, with any afternoon clearing potentially allowing brief rises near 72°F but unlikely to exceed it significantly. The market’s heavy weighting on the 70–71°F bin (48.5%) followed by 68–69°F (33%) reflects trader assessment of these atmospheric conditions, while lower probabilities for 72°F+ or sub-68°F outcomes account for modest forecast uncertainty in cloud timing and marine-layer depth. New observational data and updated model runs over the next 24 hours will refine these probabilities ahead of 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 30 Aug '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.
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 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.
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 28, 2026, 10:55 AM ET
Volume
$4,285End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 10:55 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 30 Aug '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.
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.**Marine layer influence and lingering moisture from recent showers are capping daytime heating in Seattle, driving market-implied odds toward a maximum temperature of 68–71°F on August 30.** Official forecasts from sources including WeatherBug, US Harbors, and the Met Office project highs in the mid-60s to low-70s under mostly cloudy skies, with limited solar insolation due to persistent onshore flow from the Pacific and residual boundary-layer moisture after Saturday’s showers and isolated thunderstorms. Light winds and a stable marine layer further suppress warming, keeping readings below the long-term August 30 average high of ~75°F at Seattle-Tacoma International Airport.
Model consensus aligns on this cooler regime, with any afternoon clearing potentially allowing brief rises near 72°F but unlikely to exceed it significantly. The market’s heavy weighting on the 70–71°F bin (48.5%) followed by 68–69°F (33%) reflects trader assessment of these atmospheric conditions, while lower probabilities for 72°F+ or sub-68°F outcomes account for modest forecast uncertainty in cloud timing and marine-layer depth. New observational data and updated model runs over the next 24 hours will refine these probabilities ahead of 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 30 Aug '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.
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 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.
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
$4,285End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 10:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...**Marine layer influence and lingering moisture from recent showers are capping daytime heating in Seattle, driving market-implied odds toward a maximum temperature of 68–71°F on August 30.** Official forecasts from sources including WeatherBug, US Harbors, and the Met Office project highs in the mid-60s to low-70s under mostly cloudy skies, with limited solar insolation due to persistent onshore flow from the Pacific and residual boundary-layer moisture after Saturday’s showers and isolated thunderstorms. Light winds and a stable marine layer further suppress warming, keeping readings below the long-term August 30 average high of ~75°F at Seattle-Tacoma International Airport. Model consensus aligns on this cooler regime, with any afternoon clearing potentially allowing brief rises near 72°F but unlikely to exceed it significantly. The market’s heavy weighting on the 70–71°F bin (48.5%) followed by 68–69°F (33%) reflects trader assessment of these atmospheric conditions, while lower probabilities for 72°F+ or sub-68°F outcomes account for modest forecast uncertainty in cloud timing and marine-layer depth. New observational data and updated model runs over the next 24 hours will refine these probabilities ahead of resolution.
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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