Trader consensus on Polymarket heavily favors a high of 56°F or higher in Seattle on March 16 at 77.5% implied probability, driven by the latest National Weather Service forecast predicting upper 50s amid a strengthening high-pressure ridge ushering warm air advection from the California interior. Seattle's March climatological average high hovers around 55°F, but current upper-air patterns—confirmed by recent GFS and ECMWF model runs—feature southerly flow overriding typical cool marine layers, positioning 54-55°F (18.5%) as the next likely bin. Ensemble forecasts have trended 1-2°F warmer since yesterday, reducing odds for cooler 52-53°F outcomes (2.5%); watch for afternoon updates as surface observations refine peak heating estimates.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 16?
Highest temperature in Seattle on March 16?
54-55°F 100.0%
37°F or below <1%
38-39°F <1%
40-41°F <1%
$84,713 Vol.
$84,713 Vol.
37°F or below
No
38-39°F
No
40-41°F
No
42-43°F
No
44-45°F
No
46-47°F
No
48-49°F
No
50-51°F
No
52-53°F
No
54-55°F
Yes
56°F or higher
No
54-55°F 100.0%
37°F or below <1%
38-39°F <1%
40-41°F <1%
$84,713 Vol.
$84,713 Vol.
37°F or below
No
38-39°F
No
40-41°F
No
42-43°F
No
44-45°F
No
46-47°F
No
48-49°F
No
50-51°F
No
52-53°F
No
54-55°F
Yes
56°F or higher
No
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 13, 2026, 3:17 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Trader consensus on Polymarket heavily favors a high of 56°F or higher in Seattle on March 16 at 77.5% implied probability, driven by the latest National Weather Service forecast predicting upper 50s amid a strengthening high-pressure ridge ushering warm air advection from the California interior. Seattle's March climatological average high hovers around 55°F, but current upper-air patterns—confirmed by recent GFS and ECMWF model runs—feature southerly flow overriding typical cool marine layers, positioning 54-55°F (18.5%) as the next likely bin. Ensemble forecasts have trended 1-2°F warmer since yesterday, reducing odds for cooler 52-53°F outcomes (2.5%); watch for afternoon updates as surface observations refine peak heating estimates.
Experimental AI-generated summary referencing Polymarket data · Updated
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