Official National Weather Service observations at Seattle-Tacoma International Airport recorded a daily maximum of 78–79°F on August 12, 2026, aligning precisely with long-term August averages near 77–79°F and the moderating effects of Pacific marine air. This outcome reflects typical late-summer conditions without strong high-pressure ridging or offshore flow that would drive higher readings, as seen in earlier 2026 heat episodes. Trader consensus at 100% on this narrow bin draws from verified station data and short-range forecast agreement in the final days. Minor revisions in post-analysis quality control or use of alternate reporting sites remain the only realistic factors that could shift resolution, though such adjustments are rare for this metric.
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 12?
Highest temperature in Seattle on August 12?
78-79°F 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$40,755 Vol.
$40,755 Vol.
Aug 12, 2026
67°F or below
<1%
68-69°F
<1%
70-71°F
<1%
72-73°F
<1%
74-75°F
<1%
76-77°F
<1%
78-79°F
100%
80-81°F
<1%
82-83°F
<1%
84-85°F
<1%
86°F or higher
<1%
78-79°F 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$40,755 Vol.
$40,755 Vol.
Aug 12, 2026
67°F or below
$1,208 Vol.
<1%
68-69°F
$1,666 Vol.
<1%
70-71°F
$5,457 Vol.
<1%
72-73°F
$1,841 Vol.
<1%
74-75°F
$4,917 Vol.
<1%
76-77°F
$11,167 Vol.
<1%
78-79°F
$6,131 Vol.
100%
80-81°F
$2,752 Vol.
<1%
82-83°F
$2,671 Vol.
<1%
84-85°F
$1,488 Vol.
<1%
86°F or higher
$1,456 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 12 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.Official National Weather Service observations at Seattle-Tacoma International Airport recorded a daily maximum of 78–79°F on August 12, 2026, aligning precisely with long-term August averages near 77–79°F and the moderating effects of Pacific marine air. This outcome reflects typical late-summer conditions without strong high-pressure ridging or offshore flow that would drive higher readings, as seen in earlier 2026 heat episodes. Trader consensus at 100% on this narrow bin draws from verified station data and short-range forecast agreement in the final days. Minor revisions in post-analysis quality control or use of alternate reporting sites remain the only realistic factors that could shift resolution, though such adjustments are rare for this metric.
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 12 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 12 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 10, 2026, 9:02 PM ET
Volume
$40,755End Date
Aug 12, 2026Market Opened
Aug 10, 2026, 9:02 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 12 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.Official National Weather Service observations at Seattle-Tacoma International Airport recorded a daily maximum of 78–79°F on August 12, 2026, aligning precisely with long-term August averages near 77–79°F and the moderating effects of Pacific marine air. This outcome reflects typical late-summer conditions without strong high-pressure ridging or offshore flow that would drive higher readings, as seen in earlier 2026 heat episodes. Trader consensus at 100% on this narrow bin draws from verified station data and short-range forecast agreement in the final days. Minor revisions in post-analysis quality control or use of alternate reporting sites remain the only realistic factors that could shift resolution, though such adjustments are rare for this metric.
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 12 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 12 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
$40,755End Date
Aug 12, 2026Market Opened
Aug 10, 2026, 9:02 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Official National Weather Service observations at Seattle-Tacoma International Airport recorded a daily maximum of 78–79°F on August 12, 2026, aligning precisely with long-term August averages near 77–79°F and the moderating effects of Pacific marine air. This outcome reflects typical late-summer conditions without strong high-pressure ridging or offshore flow that would drive higher readings, as seen in earlier 2026 heat episodes. Trader consensus at 100% on this narrow bin draws from verified station data and short-range forecast agreement in the final days. Minor revisions in post-analysis quality control or use of alternate reporting sites remain the only realistic factors that could shift resolution, though such adjustments are rare for this metric.
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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