Latest National Weather Service and model guidance for Seattle-Tacoma International Airport points to a daily high near 78°F on July 19, reflecting moderate onshore flow from the Pacific and a stable marine layer that limits daytime warming in the Puget Sound region. Ensemble forecasts cluster most likely outcomes between 76–81°F, consistent with climatological July averages around 78°F and the absence of strong high-pressure ridging or offshore winds that could push temperatures higher. Recent model runs show minor spread due to subtle variations in cloud cover and boundary-layer moisture, keeping the 78–79°F bracket as the market leader while assigning meaningful probability to adjacent ranges. Updated NWS briefings and afternoon model releases tomorrow morning will provide the final inputs before 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 July 19?
Highest temperature in Seattle on July 19?
78-79°F 45%
76-77°F 27%
80-81°F 19%
74-75°F 7%
NEW
$11,223 Vol.
NEW
$11,223 Vol.
Jul 19, 2026
67°F or below
<1%
68-69°F
<1%
70-71°F
1%
72-73°F
1%
74-75°F
7%
76-77°F
27%
78-79°F
45%
80-81°F
19%
82-83°F
6%
84-85°F
1%
86°F or higher
<1%
78-79°F 45%
76-77°F 27%
80-81°F 19%
74-75°F 7%
NEW
$11,223 Vol.
NEW
$11,223 Vol.
Jul 19, 2026
67°F or below
$220 Vol.
<1%
68-69°F
$1,467 Vol.
<1%
70-71°F
$520 Vol.
1%
72-73°F
$466 Vol.
1%
74-75°F
$361 Vol.
7%
76-77°F
$1,428 Vol.
27%
78-79°F
$6,134 Vol.
45%
80-81°F
$405 Vol.
19%
82-83°F
$114 Vol.
6%
84-85°F
$59 Vol.
1%
86°F or higher
$49 Vol.
<1%
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 19 Jul '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.Latest National Weather Service and model guidance for Seattle-Tacoma International Airport points to a daily high near 78°F on July 19, reflecting moderate onshore flow from the Pacific and a stable marine layer that limits daytime warming in the Puget Sound region. Ensemble forecasts cluster most likely outcomes between 76–81°F, consistent with climatological July averages around 78°F and the absence of strong high-pressure ridging or offshore winds that could push temperatures higher. Recent model runs show minor spread due to subtle variations in cloud cover and boundary-layer moisture, keeping the 78–79°F bracket as the market leader while assigning meaningful probability to adjacent ranges. Updated NWS briefings and afternoon model releases tomorrow morning will provide the final inputs before resolution.
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 19 Jul '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.
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: Jul 17, 2026, 9:03 PM ET
Volume
$11,223End Date
Jul 19, 2026Market Opened
Jul 17, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...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 19 Jul '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.Latest National Weather Service and model guidance for Seattle-Tacoma International Airport points to a daily high near 78°F on July 19, reflecting moderate onshore flow from the Pacific and a stable marine layer that limits daytime warming in the Puget Sound region. Ensemble forecasts cluster most likely outcomes between 76–81°F, consistent with climatological July averages around 78°F and the absence of strong high-pressure ridging or offshore winds that could push temperatures higher. Recent model runs show minor spread due to subtle variations in cloud cover and boundary-layer moisture, keeping the 78–79°F bracket as the market leader while assigning meaningful probability to adjacent ranges. Updated NWS briefings and afternoon model releases tomorrow morning will provide the final inputs before resolution.
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 19 Jul '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.
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
$11,223End Date
Jul 19, 2026Market Opened
Jul 17, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Latest National Weather Service and model guidance for Seattle-Tacoma International Airport points to a daily high near 78°F on July 19, reflecting moderate onshore flow from the Pacific and a stable marine layer that limits daytime warming in the Puget Sound region. Ensemble forecasts cluster most likely outcomes between 76–81°F, consistent with climatological July averages around 78°F and the absence of strong high-pressure ridging or offshore winds that could push temperatures higher. Recent model runs show minor spread due to subtle variations in cloud cover and boundary-layer moisture, keeping the 78–79°F bracket as the market leader while assigning meaningful probability to adjacent ranges. Updated NWS briefings and afternoon model releases tomorrow morning will provide the final inputs before 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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