The National Weather Service forecast for Seattle on March 26 centers on a high temperature of 52°F under partly cloudy skies with light winds, aligning with the market's leading 52-53°F outcome at 51.5% implied probability as traders aggregate the latest NOAA model ensembles showing consistent peaks in this range. Recent GFS and ECMWF runs from the past 24 hours reinforce this, driven by a weakening high-pressure ridge allowing cooler marine air influence while preventing sharper drops below 50°F. Climatologically, late March highs average 54°F, but current sea surface temperatures and persistent cloud cover cap upside potential, positioning 50-51°F (20.5%) and 54-55°F (18%) as viable alternatives amid typical spring forecast uncertainty. New model updates expected overnight could refine these trader consensus odds further.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 26?
Highest temperature in Seattle on March 26?
52-53°F 52%
54-55°F 18%
50-51°F 18%
48-49°F 6%
$34,388 Vol.
$34,388 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
52%
54-55°F
18%
56-57°F
4%
58-59°F
1%
60-61°F
1%
62°F or higher
<1%
52-53°F 52%
54-55°F 18%
50-51°F 18%
48-49°F 6%
$34,388 Vol.
$34,388 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
52%
54-55°F
18%
56-57°F
4%
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...The National Weather Service forecast for Seattle on March 26 centers on a high temperature of 52°F under partly cloudy skies with light winds, aligning with the market's leading 52-53°F outcome at 51.5% implied probability as traders aggregate the latest NOAA model ensembles showing consistent peaks in this range. Recent GFS and ECMWF runs from the past 24 hours reinforce this, driven by a weakening high-pressure ridge allowing cooler marine air influence while preventing sharper drops below 50°F. Climatologically, late March highs average 54°F, but current sea surface temperatures and persistent cloud cover cap upside potential, positioning 50-51°F (20.5%) and 54-55°F (18%) as viable alternatives amid typical spring forecast uncertainty. New model updates expected overnight could refine these trader consensus odds further.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions