Official observations from Seattle-Tacoma International Airport (KSEA), the market's resolution source via Weather Underground, confirm the highest temperature on April 1, 2026, peaked at 49°F around 4:23 PM local time. Persistent cloud cover and light rain accumulating 0.17 inches suppressed solar insolation, capping highs 7.5°F below the climatological normal of 56.5°F for the date amid a cool, moist air mass linked to a passing frontal system. Trader consensus at 100% implied probability reflects this verified meteorological data from National Weather Service-monitored instrumentation. Realistic challenges are minimal, limited to rare post hoc revisions in official records by NOAA or affiliated stations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on April 1?
Highest temperature in Seattle on April 1?
48-49°F 100.0%
43°F or below <1%
44-45°F <1%
46-47°F <1%
$128,966 Vol.
$128,966 Vol.
43°F or below
No
44-45°F
No
46-47°F
No
48-49°F
Yes
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°F or higher
No
48-49°F 100.0%
43°F or below <1%
44-45°F <1%
46-47°F <1%
$128,966 Vol.
$128,966 Vol.
43°F or below
No
44-45°F
No
46-47°F
No
48-49°F
Yes
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°F or higher
No
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, 2:23 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Seattle-Tacoma International Airport (KSEA), the market's resolution source via Weather Underground, confirm the highest temperature on April 1, 2026, peaked at 49°F around 4:23 PM local time. Persistent cloud cover and light rain accumulating 0.17 inches suppressed solar insolation, capping highs 7.5°F below the climatological normal of 56.5°F for the date amid a cool, moist air mass linked to a passing frontal system. Trader consensus at 100% implied probability reflects this verified meteorological data from National Weather Service-monitored instrumentation. Realistic challenges are minimal, limited to rare post hoc revisions in official records by NOAA or affiliated stations.
Experimental AI-generated summary referencing Polymarket data · Updated
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