Trader consensus on Polymarket tilts toward a Seattle high temperature of 50-51°F (36.5% implied probability) or 52-53°F (33.0%), driven by the latest NOAA and ECMWF ensemble forecasts converging on the low 50s amid persistent cool marine air advection from the Pacific. Differentiating factors include subtle variations in boundary layer mixing and stratocumulus cloud cover: fuller cloud decks favor the cooler 50-51°F bin by trapping nocturnal cooling, while brief afternoon clearing could nudge peaks toward 52-53°F per high-resolution WRF model runs. Historical March 23 averages hover near 54°F, but this year's amplified ridge-trough pattern suppresses highs 3-5°F below normal, with minimal spread in 12Z model updates tempering outliers above 55°F. Monitor evening soundings for final clarity.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 23?
Highest temperature in Seattle on March 23?
50-51°F 37%
52-53°F 33%
48-49°F 16%
54-55°F 9%
41°F or below
1%
42-43°F
1%
44-45°F
2%
46-47°F
5%
48-49°F
16%
50-51°F
37%
52-53°F
33%
54-55°F
9%
56-57°F
7%
58-59°F
2%
60°F or higher
<1%
50-51°F 37%
52-53°F 33%
48-49°F 16%
54-55°F 9%
41°F or below
1%
42-43°F
1%
44-45°F
2%
46-47°F
5%
48-49°F
16%
50-51°F
37%
52-53°F
33%
54-55°F
9%
56-57°F
7%
58-59°F
2%
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 Polymarket tilts toward a Seattle high temperature of 50-51°F (36.5% implied probability) or 52-53°F (33.0%), driven by the latest NOAA and ECMWF ensemble forecasts converging on the low 50s amid persistent cool marine air advection from the Pacific. Differentiating factors include subtle variations in boundary layer mixing and stratocumulus cloud cover: fuller cloud decks favor the cooler 50-51°F bin by trapping nocturnal cooling, while brief afternoon clearing could nudge peaks toward 52-53°F per high-resolution WRF model runs. Historical March 23 averages hover near 54°F, but this year's amplified ridge-trough pattern suppresses highs 3-5°F below normal, with minimal spread in 12Z model updates tempering outliers above 55°F. Monitor evening soundings for final clarity.
Experimental AI-generated summary referencing Polymarket data · Updated
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