Current National Weather Service forecasts and ensemble models indicate Seattle's high temperature on May 22 will reach the mid-60s Fahrenheit under a building ridge of high pressure, supporting the market's overwhelming 95.7% implied probability for 64°F or higher. This outlook aligns with typical late-spring climatology for the Pacific Northwest, where daytime warming accelerates after mid-May with average highs near 65°F and reduced marine influence. Key variables include minimal cloud cover and light northerly winds that limit cooling from the Puget Sound. A stronger onshore flow or unexpected low-level marine layer could cap readings below 64°F, though such shifts remain unlikely given the current model consensus and stable atmospheric setup through the weekend.
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 22?
64°F or higher 95.3%
62-63°F 2.1%
50-51°F <1%
52-53°F <1%
$33,479 Vol.
$33,479 Vol.
45°F or below
<1%
46-47°F
<1%
48-49°F
<1%
50-51°F
<1%
52-53°F
<1%
54-55°F
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
<1%
62-63°F
2%
64°F or higher
95%
64°F or higher 95.3%
62-63°F 2.1%
50-51°F <1%
52-53°F <1%
$33,479 Vol.
$33,479 Vol.
45°F or below
<1%
46-47°F
<1%
48-49°F
<1%
50-51°F
<1%
52-53°F
<1%
54-55°F
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
<1%
62-63°F
2%
64°F or higher
95%
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 20, 2026, 12:05 AM 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...Current National Weather Service forecasts and ensemble models indicate Seattle's high temperature on May 22 will reach the mid-60s Fahrenheit under a building ridge of high pressure, supporting the market's overwhelming 95.7% implied probability for 64°F or higher. This outlook aligns with typical late-spring climatology for the Pacific Northwest, where daytime warming accelerates after mid-May with average highs near 65°F and reduced marine influence. Key variables include minimal cloud cover and light northerly winds that limit cooling from the Puget Sound. A stronger onshore flow or unexpected low-level marine layer could cap readings below 64°F, though such shifts remain unlikely given the current model consensus and stable atmospheric setup through the weekend.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions