Trader consensus on Polymarket favors a Seattle high of 48-49°F (33.5% implied probability) for March 29, narrowly ahead of 46-47°F (26.5%), driven by National Weather Service forecasts projecting upper 40s to near 50°F at Seattle-Tacoma International Airport amid a high-pressure ridge over the Pacific Northwest. This setup promises partly sunny skies Saturday transitioning to increasing clouds Sunday as a frontal system approaches from the northwest, with model ensembles like GFS and ECMWF clustering around 47-49°F but diverging on marine stratus persistence and diurnal heating potential. Recent warm spells earlier in March (mid-50s) have cooled under the ridge, while historical March averages near 54°F provide context; uncertainty hinges on frontal timing, with updated 18Z model runs expected to refine odds before resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 29?
Highest temperature in Seattle on March 29?
48-49°F 33%
46-47°F 26.5%
44-45°F 16.1%
50-51°F 14%
$17,496 Vol.
$17,496 Vol.
37°F or below
<1%
38-39°F
1%
40-41°F
<1%
42-43°F
3%
44-45°F
16%
46-47°F
27%
48-49°F
33%
50-51°F
14%
52-53°F
5%
54-55°F
3%
56°F or higher
1%
48-49°F 33%
46-47°F 26.5%
44-45°F 16.1%
50-51°F 14%
$17,496 Vol.
$17,496 Vol.
37°F or below
<1%
38-39°F
1%
40-41°F
<1%
42-43°F
3%
44-45°F
16%
46-47°F
27%
48-49°F
33%
50-51°F
14%
52-53°F
5%
54-55°F
3%
56°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 25, 2026, 6:02 AM 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 favors a Seattle high of 48-49°F (33.5% implied probability) for March 29, narrowly ahead of 46-47°F (26.5%), driven by National Weather Service forecasts projecting upper 40s to near 50°F at Seattle-Tacoma International Airport amid a high-pressure ridge over the Pacific Northwest. This setup promises partly sunny skies Saturday transitioning to increasing clouds Sunday as a frontal system approaches from the northwest, with model ensembles like GFS and ECMWF clustering around 47-49°F but diverging on marine stratus persistence and diurnal heating potential. Recent warm spells earlier in March (mid-50s) have cooled under the ridge, while historical March averages near 54°F provide context; uncertainty hinges on frontal timing, with updated 18Z model runs expected to refine odds before resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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