National Weather Service forecasts for Seattle on March 25 indicate a high temperature firmly in the 50-51°F range, aligning with the market's 99.9% implied probability on that bin and reflecting strong model consensus from GFS and ECMWF ensembles. Cool maritime air under persistent northwest flow, combined with light cloud cover and no significant warm air advection, supports this positioning, consistent with recent observational data showing overnight lows in the upper 30s°F and diurnal highs capped by stable boundary layer conditions. Climatologically, late March highs average 54°F, but current upper-level troughing suppresses warming. Realistic challenges include an unforeseen ridge amplification or downslope föhn winds from the Cascades, though low-level model agreement and minimal spread suggest scant upside risk ahead of final hourly guidance updates.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 25?
Highest temperature in Seattle on March 25?
50-51°F 99.6%
52-53°F <1%
54-55°F <1%
56-57°F <1%
$103,305 Vol.
$103,305 Vol.
50-51°F
100%
52-53°F
<1%
54-55°F
<1%
56-57°F
<1%
58°F or higher
<1%
50-51°F 99.6%
52-53°F <1%
54-55°F <1%
56-57°F <1%
$103,305 Vol.
$103,305 Vol.
50-51°F
100%
52-53°F
<1%
54-55°F
<1%
56-57°F
<1%
58°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 21, 2026, 6:02 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...National Weather Service forecasts for Seattle on March 25 indicate a high temperature firmly in the 50-51°F range, aligning with the market's 99.9% implied probability on that bin and reflecting strong model consensus from GFS and ECMWF ensembles. Cool maritime air under persistent northwest flow, combined with light cloud cover and no significant warm air advection, supports this positioning, consistent with recent observational data showing overnight lows in the upper 30s°F and diurnal highs capped by stable boundary layer conditions. Climatologically, late March highs average 54°F, but current upper-level troughing suppresses warming. Realistic challenges include an unforeseen ridge amplification or downslope föhn winds from the Cascades, though low-level model agreement and minimal spread suggest scant upside risk ahead of final hourly guidance updates.
Experimental AI-generated summary referencing Polymarket data · Updated
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