National Weather Service observations at Seattle-Tacoma International Airport (KSEA) confirm the highest temperature on April 10, 2026, reached exactly 68°F at 3:54 PM PDT, per the official climatological report issued April 11. This automated surface observing system (ASOS) data, representing trader consensus with 100% implied probability for 68-69°F, reflects post-event certainty after onshore flow and marine layer suppressed warming following earlier 70°F days—the season's first. NOAA forecast models had converged on mid-60s highs amid typical spring Pacific Northwest patterns, exceeding the 1991-2020 April normal of 58°F but below the 74°F record. Final resolution hinges on data validation; only a rare quality-control revision could shift outcomes.
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 April 10?
Highest temperature in Seattle on April 10?
68-69°F 100.0%
51°F or below <1%
52-53°F <1%
54-55°F <1%
$180,836 Vol.
$180,836 Vol.
51°F or below
No
52-53°F
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Yes
70°F or higher
No
68-69°F 100.0%
51°F or below <1%
52-53°F <1%
54-55°F <1%
$180,836 Vol.
$180,836 Vol.
51°F or below
No
52-53°F
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Yes
70°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: Apr 6, 2026, 12:08 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
National Weather Service observations at Seattle-Tacoma International Airport (KSEA) confirm the highest temperature on April 10, 2026, reached exactly 68°F at 3:54 PM PDT, per the official climatological report issued April 11. This automated surface observing system (ASOS) data, representing trader consensus with 100% implied probability for 68-69°F, reflects post-event certainty after onshore flow and marine layer suppressed warming following earlier 70°F days—the season's first. NOAA forecast models had converged on mid-60s highs amid typical spring Pacific Northwest patterns, exceeding the 1991-2020 April normal of 58°F but below the 74°F record. Final resolution hinges on data validation; only a rare quality-control revision could shift outcomes.
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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