National Weather Service observations from Seattle-Tacoma International Airport confirm the highest temperature on April 4 hit 62-63°F, anchoring trader consensus at a 100% implied probability for this outcome. Cool marine layer persistence, light onshore winds around 5-10 mph, and partly cloudy skies typical for early spring in the Pacific Northwest suppressed highs above this range, consistent with Seattle's April climatology averaging 57-62°F. Verified thermometer readings from official automated stations provide the precise, quality-controlled data for market resolution. Scenarios challenging this include rare post hoc data revisions from instrument calibration issues or quality control audits by NOAA, though no such flags have emerged in preliminary summaries.
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 April 4?
Highest temperature in Seattle on April 4?
62-63°F 100.0%
49°F or below <1%
50-51°F <1%
52-53°F <1%
$142,108 Vol.
$142,108 Vol.
Apr 4, 2026
49°F or below
No
50-51°F
No
52-53°F
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
Yes
64-65°F
No
66-67°F
No
68°F or higher
No
62-63°F 100.0%
49°F or below <1%
50-51°F <1%
52-53°F <1%
$142,108 Vol.
$142,108 Vol.
Apr 4, 2026
49°F or below
$6,926 Vol.
No
50-51°F
$6,200 Vol.
No
52-53°F
$4,282 Vol.
No
54-55°F
$10,808 Vol.
No
56-57°F
$12,446 Vol.
No
58-59°F
$27,817 Vol.
No
60-61°F
$18,676 Vol.
No
62-63°F
$19,725 Vol.
Yes
64-65°F
$13,243 Vol.
No
66-67°F
$15,694 Vol.
No
68°F or higher
$6,291 Vol.
No
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 4 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Seattle-Tacoma International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.National Weather Service observations from Seattle-Tacoma International Airport confirm the highest temperature on April 4 hit 62-63°F, anchoring trader consensus at a 100% implied probability for this outcome. Cool marine layer persistence, light onshore winds around 5-10 mph, and partly cloudy skies typical for early spring in the Pacific Northwest suppressed highs above this range, consistent with Seattle's April climatology averaging 57-62°F. Verified thermometer readings from official automated stations provide the precise, quality-controlled data for market resolution. Scenarios challenging this include rare post hoc data revisions from instrument calibration issues or quality control audits by NOAA, though no such flags have emerged in preliminary summaries.
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 4 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Seattle-Tacoma International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Seattle-Tacoma International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Mar 29, 2026, 3:15 PM ET
Volume
$142,108End Date
Apr 4, 2026Market Opened
Mar 29, 2026, 3:15 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 4 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Seattle-Tacoma International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.National Weather Service observations from Seattle-Tacoma International Airport confirm the highest temperature on April 4 hit 62-63°F, anchoring trader consensus at a 100% implied probability for this outcome. Cool marine layer persistence, light onshore winds around 5-10 mph, and partly cloudy skies typical for early spring in the Pacific Northwest suppressed highs above this range, consistent with Seattle's April climatology averaging 57-62°F. Verified thermometer readings from official automated stations provide the precise, quality-controlled data for market resolution. Scenarios challenging this include rare post hoc data revisions from instrument calibration issues or quality control audits by NOAA, though no such flags have emerged in preliminary summaries.
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 4 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Seattle-Tacoma International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Seattle-Tacoma International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$142,108End Date
Apr 4, 2026Market Opened
Mar 29, 2026, 3:15 PM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
National Weather Service observations from Seattle-Tacoma International Airport confirm the highest temperature on April 4 hit 62-63°F, anchoring trader consensus at a 100% implied probability for this outcome. Cool marine layer persistence, light onshore winds around 5-10 mph, and partly cloudy skies typical for early spring in the Pacific Northwest suppressed highs above this range, consistent with Seattle's April climatology averaging 57-62°F. Verified thermometer readings from official automated stations provide the precise, quality-controlled data for market resolution. Scenarios challenging this include rare post hoc data revisions from instrument calibration issues or quality control audits by NOAA, though no such flags have emerged in preliminary summaries.
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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