Trader consensus on Seattle's highest temperature March 23 tilts toward 50-51°F (40.5% implied probability) over 52-53°F (34.5%), driven by the latest NOAA GFS and ECMWF ensemble forecasts projecting daytime highs in the low-to-mid 50s amid persistent onshore flow and marine stratus clouds capping temperatures. Differentiating these close outcomes are model spreads on boundary layer mixing and afternoon partial clearing—GFS runs favor slightly cooler 50-51°F with stronger low-level stability, while ECMWF hints at 52-53°F if ridging builds modestly. Seattle's March climatology shows a median high of 52°F, but cool Pacific sea surface temperatures and a progressive upper jet currently suppress warmth, with NWS point forecasts centering near 51°F ahead of any 12z updates.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 23?
Highest temperature in Seattle on March 23?
50-51°F 41%
52-53°F 35%
48-49°F 16%
54-55°F 9%
41°F or below
1%
42-43°F
1%
44-45°F
2%
46-47°F
6%
48-49°F
16%
50-51°F
41%
52-53°F
35%
54-55°F
9%
56-57°F
6%
58-59°F
1%
60°F or higher
1%
50-51°F 41%
52-53°F 35%
48-49°F 16%
54-55°F 9%
41°F or below
1%
42-43°F
1%
44-45°F
2%
46-47°F
6%
48-49°F
16%
50-51°F
41%
52-53°F
35%
54-55°F
9%
56-57°F
6%
58-59°F
1%
60°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 19, 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 Seattle's highest temperature March 23 tilts toward 50-51°F (40.5% implied probability) over 52-53°F (34.5%), driven by the latest NOAA GFS and ECMWF ensemble forecasts projecting daytime highs in the low-to-mid 50s amid persistent onshore flow and marine stratus clouds capping temperatures. Differentiating these close outcomes are model spreads on boundary layer mixing and afternoon partial clearing—GFS runs favor slightly cooler 50-51°F with stronger low-level stability, while ECMWF hints at 52-53°F if ridging builds modestly. Seattle's March climatology shows a median high of 52°F, but cool Pacific sea surface temperatures and a progressive upper jet currently suppress warmth, with NWS point forecasts centering near 51°F ahead of any 12z updates.
Experimental AI-generated summary referencing Polymarket data · Updated
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