Trader consensus on Polymarket favors a Seattle high temperature of 52-53°F at 37.5% implied probability, closely trailed by 54-55°F at 25.5%, reflecting the latest National Weather Service forecasts showing highs peaking around 53°F under persistent northwest flow and mid-level clouds capping daytime heating. Recent ECMWF and GFS model runs over the past 48 hours have converged on this mid-50s range, influenced by cool Pacific marine air and light onshore breezes, down from slightly warmer ensemble means earlier in the week amid a stalled frontal boundary. Climatologically, late March highs average 54°F at Seattle-Tacoma International Airport, with low extremes unlikely given stable upper-air patterns. Traders await the 12Z NWS forecast update Tuesday for potential refinements ahead of resolution based on official Sea-Tac observations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 26?
Highest temperature in Seattle on March 26?
52-53°F 38%
54-55°F 27%
50-51°F 18%
48-49°F 6%
$31,125 Vol.
$31,125 Vol.
43°F or below
<1%
44-45°F
1%
46-47°F
1%
48-49°F
6%
50-51°F
18%
52-53°F
38%
54-55°F
27%
56-57°F
5%
58-59°F
1%
60-61°F
<1%
62°F or higher
<1%
52-53°F 38%
54-55°F 27%
50-51°F 18%
48-49°F 6%
$31,125 Vol.
$31,125 Vol.
43°F or below
<1%
44-45°F
1%
46-47°F
1%
48-49°F
6%
50-51°F
18%
52-53°F
38%
54-55°F
27%
56-57°F
5%
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 22, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Trader consensus on Polymarket favors a Seattle high temperature of 52-53°F at 37.5% implied probability, closely trailed by 54-55°F at 25.5%, reflecting the latest National Weather Service forecasts showing highs peaking around 53°F under persistent northwest flow and mid-level clouds capping daytime heating. Recent ECMWF and GFS model runs over the past 48 hours have converged on this mid-50s range, influenced by cool Pacific marine air and light onshore breezes, down from slightly warmer ensemble means earlier in the week amid a stalled frontal boundary. Climatologically, late March highs average 54°F at Seattle-Tacoma International Airport, with low extremes unlikely given stable upper-air patterns. Traders await the 12Z NWS forecast update Tuesday for potential refinements ahead of resolution based on official Sea-Tac observations.
Experimental AI-generated summary referencing Polymarket data · Updated
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