Trader consensus on Polymarket overwhelmingly backs 56-57°F (97.9% implied probability) for Seattle's highest temperature on May 13, driven by official National Weather Service observations at Seattle-Tacoma International Airport (KSEA), where automated surface observing system data recorded a daily maximum in that narrow range. This reflects a dramatic cool-down from May 12's record-tying 82°F high, triggered by persistent marine stratus clouds, strengthened onshore flow, and a cool air mass influx displacing the prior high-pressure ridge—conditions confirmed by real-time METAR reports showing peaks around 56-57°F amid low ceilings and drizzle. While final quality-controlled NOAA data could prompt minor revisions if a late-afternoon reading emerges or metadata adjustments apply, such shifts rarely exceed 1-2°F for established ASOS stations, solidifying the market's positioning ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Seattle on May 13?
Highest temperature in Seattle on May 13?
56-57°F 97.2%
58-59°F 1.3%
60-61°F <1%
64-65°F <1%
$117,496 Vol.
$117,496 Vol.
54-55°F
<1%
56-57°F
97%
58-59°F
1%
60-61°F
1%
62-63°F
<1%
64-65°F
<1%
66-67°F
<1%
68-69°F
<1%
70-71°F
<1%
72°F or higher
<1%
56-57°F 97.2%
58-59°F 1.3%
60-61°F <1%
64-65°F <1%
$117,496 Vol.
$117,496 Vol.
54-55°F
<1%
56-57°F
97%
58-59°F
1%
60-61°F
1%
62-63°F
<1%
64-65°F
<1%
66-67°F
<1%
68-69°F
<1%
70-71°F
<1%
72°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: May 11, 2026, 12:33 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: 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.
Resolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket overwhelmingly backs 56-57°F (97.9% implied probability) for Seattle's highest temperature on May 13, driven by official National Weather Service observations at Seattle-Tacoma International Airport (KSEA), where automated surface observing system data recorded a daily maximum in that narrow range. This reflects a dramatic cool-down from May 12's record-tying 82°F high, triggered by persistent marine stratus clouds, strengthened onshore flow, and a cool air mass influx displacing the prior high-pressure ridge—conditions confirmed by real-time METAR reports showing peaks around 56-57°F amid low ceilings and drizzle. While final quality-controlled NOAA data could prompt minor revisions if a late-afternoon reading emerges or metadata adjustments apply, such shifts rarely exceed 1-2°F for established ASOS stations, solidifying the market's positioning ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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