Seattle's mid-August temperature outlook centers on typical late-summer marine moderation, with National Weather Service and model guidance pointing to a daily high near 78°F amid light onshore flow and variable cloud cover from the Puget Sound. This produces the market's tight clustering around 76-79°F outcomes, as afternoon heating often stalls below 80°F without strong downslope winds or clear skies. Key variables include marine-layer persistence, which can suppress peaks by several degrees, versus brief clearing that allows modest warming into the low 80s. Historical August averages near 75-79°F reinforce the distribution, while the wide spread across bins underscores forecast sensitivity to small changes in wind and insolation on resolution 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 August 15?
Highest temperature in Seattle on August 15?
76-77°F 35%
78-79°F 26%
74-75°F 20%
80-81°F 12%
NEW
$14,596 Vol.
NEW
$14,596 Vol.
Aug 15, 2026
73°F or below
4%
74-75°F
20%
76-77°F
35%
78-79°F
26%
80-81°F
12%
82-83°F
5%
84-85°F
<1%
86-87°F
<1%
88-89°F
<1%
90-91°F
<1%
92°F or higher
<1%
76-77°F 35%
78-79°F 26%
74-75°F 20%
80-81°F 12%
NEW
$14,596 Vol.
NEW
$14,596 Vol.
Aug 15, 2026
73°F or below
$4,773 Vol.
4%
74-75°F
$1,494 Vol.
20%
76-77°F
$1,714 Vol.
35%
78-79°F
$1,736 Vol.
26%
80-81°F
$1,797 Vol.
12%
82-83°F
$367 Vol.
5%
84-85°F
$999 Vol.
<1%
86-87°F
$720 Vol.
<1%
88-89°F
$317 Vol.
<1%
90-91°F
$315 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.Seattle's mid-August temperature outlook centers on typical late-summer marine moderation, with National Weather Service and model guidance pointing to a daily high near 78°F amid light onshore flow and variable cloud cover from the Puget Sound. This produces the market's tight clustering around 76-79°F outcomes, as afternoon heating often stalls below 80°F without strong downslope winds or clear skies. Key variables include marine-layer persistence, which can suppress peaks by several degrees, versus brief clearing that allows modest warming into the low 80s. Historical August averages near 75-79°F reinforce the distribution, while the wide spread across bins underscores forecast sensitivity to small changes in wind and insolation on resolution day.
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
$14,596End 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.Seattle's mid-August temperature outlook centers on typical late-summer marine moderation, with National Weather Service and model guidance pointing to a daily high near 78°F amid light onshore flow and variable cloud cover from the Puget Sound. This produces the market's tight clustering around 76-79°F outcomes, as afternoon heating often stalls below 80°F without strong downslope winds or clear skies. Key variables include marine-layer persistence, which can suppress peaks by several degrees, versus brief clearing that allows modest warming into the low 80s. Historical August averages near 75-79°F reinforce the distribution, while the wide spread across bins underscores forecast sensitivity to small changes in wind and insolation on resolution day.
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
$14,596End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Seattle's mid-August temperature outlook centers on typical late-summer marine moderation, with National Weather Service and model guidance pointing to a daily high near 78°F amid light onshore flow and variable cloud cover from the Puget Sound. This produces the market's tight clustering around 76-79°F outcomes, as afternoon heating often stalls below 80°F without strong downslope winds or clear skies. Key variables include marine-layer persistence, which can suppress peaks by several degrees, versus brief clearing that allows modest warming into the low 80s. Historical August averages near 75-79°F reinforce the distribution, while the wide spread across bins underscores forecast sensitivity to small changes in wind and insolation on resolution 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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