Trader consensus has locked in at 100% implied probability for a Seattle high of 54-55°F on April 17, anchored by verified observations from the National Weather Service's Automated Surface Observing System at Seattle-Tacoma International Airport (KSEA), the market's resolution source via Weather Underground. Cool marine air advection and persistent stratus cloud cover—hallmarks of Pacific Northwest spring patterns—capped daytime heating, with METAR reports peaking near 55°F amid light winds and high humidity. This aligns with NOAA forecast model consensus for below-normal temperatures (April average ~59°F) amid a post-warm spell cooling trend since early April. Post-resolution data revisions are exceedingly rare, though anomalous sensor glitches could theoretically prompt review.
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 17?
Highest temperature in Seattle on April 17?
54-55°F 100.0%
51°F or below <1%
52-53°F <1%
56-57°F <1%
$86,937 Vol.
$86,937 Vol.
Apr 17, 2026
51°F or below
No
52-53°F
No
54-55°F
Yes
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
No
70°F or higher
No
54-55°F 100.0%
51°F or below <1%
52-53°F <1%
56-57°F <1%
$86,937 Vol.
$86,937 Vol.
Apr 17, 2026
51°F or below
$13,649 Vol.
No
52-53°F
$14,931 Vol.
No
54-55°F
$17,636 Vol.
Yes
56-57°F
$10,892 Vol.
No
58-59°F
$10,091 Vol.
No
60-61°F
$7,982 Vol.
No
62-63°F
$3,241 Vol.
No
64-65°F
$2,501 Vol.
No
66-67°F
$1,821 Vol.
No
68-69°F
$2,045 Vol.
No
70°F or higher
$2,147 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 17 Apr '26.
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.Trader consensus has locked in at 100% implied probability for a Seattle high of 54-55°F on April 17, anchored by verified observations from the National Weather Service's Automated Surface Observing System at Seattle-Tacoma International Airport (KSEA), the market's resolution source via Weather Underground. Cool marine air advection and persistent stratus cloud cover—hallmarks of Pacific Northwest spring patterns—capped daytime heating, with METAR reports peaking near 55°F amid light winds and high humidity. This aligns with NOAA forecast model consensus for below-normal temperatures (April average ~59°F) amid a post-warm spell cooling trend since early April. Post-resolution data revisions are exceedingly rare, though anomalous sensor glitches could theoretically prompt review.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 17 Apr '26.
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.
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 15, 2026, 6:05 AM ET
Volume
$86,937End Date
Apr 17, 2026Market Opened
Apr 15, 2026, 6:05 AM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 17 Apr '26.
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.Trader consensus has locked in at 100% implied probability for a Seattle high of 54-55°F on April 17, anchored by verified observations from the National Weather Service's Automated Surface Observing System at Seattle-Tacoma International Airport (KSEA), the market's resolution source via Weather Underground. Cool marine air advection and persistent stratus cloud cover—hallmarks of Pacific Northwest spring patterns—capped daytime heating, with METAR reports peaking near 55°F amid light winds and high humidity. This aligns with NOAA forecast model consensus for below-normal temperatures (April average ~59°F) amid a post-warm spell cooling trend since early April. Post-resolution data revisions are exceedingly rare, though anomalous sensor glitches could theoretically prompt review.
This market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 17 Apr '26.
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.
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.
Volume
$86,937End Date
Apr 17, 2026Market Opened
Apr 15, 2026, 6:05 AM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus has locked in at 100% implied probability for a Seattle high of 54-55°F on April 17, anchored by verified observations from the National Weather Service's Automated Surface Observing System at Seattle-Tacoma International Airport (KSEA), the market's resolution source via Weather Underground. Cool marine air advection and persistent stratus cloud cover—hallmarks of Pacific Northwest spring patterns—capped daytime heating, with METAR reports peaking near 55°F amid light winds and high humidity. This aligns with NOAA forecast model consensus for below-normal temperatures (April average ~59°F) amid a post-warm spell cooling trend since early April. Post-resolution data revisions are exceedingly rare, though anomalous sensor glitches could theoretically prompt review.
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