Latest National Weather Service forecasts for Seattle indicate persistent rain and cloud cover on April 3 from a moist Pacific system, projecting highs near 50°F, but Polymarket traders assign 36% implied probability to 56-57°F as the leading outcome, with 58-59°F (27%) and 54-55°F (23.5%) close behind, reflecting ensemble consensus from GFS and ECMWF models clustering daytime maxima around 56-58°F amid potential partial clearing. Differentiating factors include marine layer persistence from Puget Sound, which suppresses temperatures under overcast skies, versus brief sun breaks allowing solar heating closer to the early April climatological average of 57°F; subtle model divergences on frontal timing and upper-level ridge strength create this tight spread. New 12Z model runs and NWS updates expected April 2 will sharpen guidance ahead of resolution at Seattle-Tacoma International Airport (KSEA).
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on April 3?
Highest temperature in Seattle on April 3?
56-57°F 36%
54-55°F 26%
58-59°F 25%
60-61°F 5.7%
$10,521 Vol.
$10,521 Vol.
45°F or below
<1%
46-47°F
<1%
48-49°F
1%
50-51°F
2%
52-53°F
6%
54-55°F
26%
56-57°F
36%
58-59°F
25%
60-61°F
6%
62-63°F
1%
64°F or higher
1%
56-57°F 36%
54-55°F 26%
58-59°F 25%
60-61°F 5.7%
$10,521 Vol.
$10,521 Vol.
45°F or below
<1%
46-47°F
<1%
48-49°F
1%
50-51°F
2%
52-53°F
6%
54-55°F
26%
56-57°F
36%
58-59°F
25%
60-61°F
6%
62-63°F
1%
64°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, 2:26 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...Latest National Weather Service forecasts for Seattle indicate persistent rain and cloud cover on April 3 from a moist Pacific system, projecting highs near 50°F, but Polymarket traders assign 36% implied probability to 56-57°F as the leading outcome, with 58-59°F (27%) and 54-55°F (23.5%) close behind, reflecting ensemble consensus from GFS and ECMWF models clustering daytime maxima around 56-58°F amid potential partial clearing. Differentiating factors include marine layer persistence from Puget Sound, which suppresses temperatures under overcast skies, versus brief sun breaks allowing solar heating closer to the early April climatological average of 57°F; subtle model divergences on frontal timing and upper-level ridge strength create this tight spread. New 12Z model runs and NWS updates expected April 2 will sharpen guidance ahead of resolution at Seattle-Tacoma International Airport (KSEA).
Experimental AI-generated summary referencing Polymarket data · Updated
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