National Weather Service observations confirmed a high of 46-47°F at Seattle-Tacoma International Airport (KSEA) yesterday amid persistent marine stratus clouds and cool northerly flow, well below the March climatological average of 55°F. Overnight into March 30, temperatures hovered in the upper 30s°F with light rain and low clouds, per latest METARs. Current NWS guidance and model consensus (GFS, ECMWF) indicate partial afternoon clearing and light southerly winds, supporting trader-implied highs of 50-51°F (46.5%) or 48-49°F (33%), reflecting modest diurnal warming under lingering cool upper-air mass. Uncertainty persists in cloud evolution; hourly KSEA reports through evening will determine resolution amid typical spring variability.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Seattle on March 30?
Highest temperature in Seattle on March 30?
50-51°F 47%
48-49°F 35%
52-53°F 13%
46-47°F 7%
$25,330 Vol.
$25,330 Vol.
41°F or below
<1%
42-43°F
<1%
44-45°F
<1%
46-47°F
7%
48-49°F
35%
50-51°F
53%
52-53°F
13%
54-55°F
4%
56-57°F
1%
58-59°F
<1%
60°F or higher
<1%
50-51°F 47%
48-49°F 35%
52-53°F 13%
46-47°F 7%
$25,330 Vol.
$25,330 Vol.
41°F or below
<1%
42-43°F
<1%
44-45°F
<1%
46-47°F
7%
48-49°F
35%
50-51°F
53%
52-53°F
13%
54-55°F
4%
56-57°F
1%
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 29, 2026, 2:11 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...National Weather Service observations confirmed a high of 46-47°F at Seattle-Tacoma International Airport (KSEA) yesterday amid persistent marine stratus clouds and cool northerly flow, well below the March climatological average of 55°F. Overnight into March 30, temperatures hovered in the upper 30s°F with light rain and low clouds, per latest METARs. Current NWS guidance and model consensus (GFS, ECMWF) indicate partial afternoon clearing and light southerly winds, supporting trader-implied highs of 50-51°F (46.5%) or 48-49°F (33%), reflecting modest diurnal warming under lingering cool upper-air mass. Uncertainty persists in cloud evolution; hourly KSEA reports through evening will determine resolution amid typical spring variability.
Experimental AI-generated summary referencing Polymarket data · Updated
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