Trader consensus on Polymarket closely splits between 50-51°F (28.5%) and 48-49°F (26.0%) for Seattle's highest temperature on April 1, reflecting National Weather Service guidance and GFS/ECMWF ensemble means projecting highs near 49°F amid a cool northwest flow regime following March's record heat dome. Persistent marine stratus clouds and light northerly winds are capping daytime heating below the early April climatological average of 56°F, with partial clearing potentially differentiating outcomes—thicker low clouds favor 48-49°F, while earlier diurnal mixing supports 50-51°F. Key uncertainties include boundary layer evolution and exact timing of any shower activity; watch Seattle NWS forecast updates and new 00Z model runs for shifts ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on April 1?
Highest temperature in Seattle on April 1?
48-49°F 39%
50-51°F 31%
46-47°F 15%
52-53°F 12.0%
43°F or below
1%
44-45°F
8%
46-47°F
15%
48-49°F
39%
50-51°F
31%
52-53°F
19%
54-55°F
7%
56-57°F
1%
58-59°F
1%
60-61°F
1%
62°F or higher
<1%
48-49°F 39%
50-51°F 31%
46-47°F 15%
52-53°F 12.0%
43°F or below
1%
44-45°F
8%
46-47°F
15%
48-49°F
39%
50-51°F
31%
52-53°F
19%
54-55°F
7%
56-57°F
1%
58-59°F
1%
60-61°F
1%
62°F or higher
<1%
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...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...Trader consensus on Polymarket closely splits between 50-51°F (28.5%) and 48-49°F (26.0%) for Seattle's highest temperature on April 1, reflecting National Weather Service guidance and GFS/ECMWF ensemble means projecting highs near 49°F amid a cool northwest flow regime following March's record heat dome. Persistent marine stratus clouds and light northerly winds are capping daytime heating below the early April climatological average of 56°F, with partial clearing potentially differentiating outcomes—thicker low clouds favor 48-49°F, while earlier diurnal mixing supports 50-51°F. Key uncertainties include boundary layer evolution and exact timing of any shower activity; watch Seattle NWS forecast updates and new 00Z model runs for shifts ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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