National Weather Service guidance currently projects a Seattle high near 80°F on August 15 under sunny conditions and light southwesterly flow, supporting trader consensus around the 76–81°F bins that together exceed 80% implied probability. Persistent onshore marine air and a moderate zonal pattern aloft continue to moderate daytime heating despite the broader warmer-than-average Pacific Northwest summer, with model spreads reflecting uncertainty in marine layer depth and timing of any brief warming. Historical mid-August normals near 77–79°F provide context for the narrow distribution, while afternoon forecast updates and observational trends remain the key near-term catalysts for shifts in market-implied odds.
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 15?
Highest temperature in Seattle on August 15?
78-79°F 34%
76-77°F 25%
80-81°F 23%
74-75°F 9%
NEW
NEW
Aug 15, 2026
73°F or below
1%
74-75°F
9%
76-77°F
25%
78-79°F
34%
80-81°F
23%
82-83°F
8%
84-85°F
3%
86-87°F
1%
88-89°F
<1%
90-91°F
<1%
92°F or higher
<1%
78-79°F 34%
76-77°F 25%
80-81°F 23%
74-75°F 9%
NEW
NEW
Aug 15, 2026
73°F or below
$10 Vol.
1%
74-75°F
$368 Vol.
9%
76-77°F
$712 Vol.
25%
78-79°F
$340 Vol.
34%
80-81°F
$719 Vol.
23%
82-83°F
$192 Vol.
8%
84-85°F
$191 Vol.
3%
86-87°F
$230 Vol.
1%
88-89°F
$26 Vol.
<1%
90-91°F
$306 Vol.
<1%
92°F or higher
$361 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Seattle-Tacoma International Airport Station, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
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.National Weather Service guidance currently projects a Seattle high near 80°F on August 15 under sunny conditions and light southwesterly flow, supporting trader consensus around the 76–81°F bins that together exceed 80% implied probability. Persistent onshore marine air and a moderate zonal pattern aloft continue to moderate daytime heating despite the broader warmer-than-average Pacific Northwest summer, with model spreads reflecting uncertainty in marine layer depth and timing of any brief warming. Historical mid-August normals near 77–79°F provide context for the narrow distribution, while afternoon forecast updates and observational trends remain the key near-term catalysts for shifts in market-implied odds.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Seattle-Tacoma International Airport Station, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Seattle-Tacoma International Airport Station, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
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 13, 2026, 8:56 PM ET
Volume
$3,453End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Seattle-Tacoma International Airport Station, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
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.National Weather Service guidance currently projects a Seattle high near 80°F on August 15 under sunny conditions and light southwesterly flow, supporting trader consensus around the 76–81°F bins that together exceed 80% implied probability. Persistent onshore marine air and a moderate zonal pattern aloft continue to moderate daytime heating despite the broader warmer-than-average Pacific Northwest summer, with model spreads reflecting uncertainty in marine layer depth and timing of any brief warming. Historical mid-August normals near 77–79°F provide context for the narrow distribution, while afternoon forecast updates and observational trends remain the key near-term catalysts for shifts in market-implied odds.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Seattle-Tacoma International Airport Station, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Seattle-Tacoma International Airport Station, available here: https://www.wunderground.com/history/daily/us/wa/seatac/KSEA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
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
$3,453End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...National Weather Service guidance currently projects a Seattle high near 80°F on August 15 under sunny conditions and light southwesterly flow, supporting trader consensus around the 76–81°F bins that together exceed 80% implied probability. Persistent onshore marine air and a moderate zonal pattern aloft continue to moderate daytime heating despite the broader warmer-than-average Pacific Northwest summer, with model spreads reflecting uncertainty in marine layer depth and timing of any brief warming. Historical mid-August normals near 77–79°F provide context for the narrow distribution, while afternoon forecast updates and observational trends remain the key near-term catalysts for shifts in market-implied odds.
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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