Trader consensus on Polymarket assigns near-certainty (100%) to Seattle's highest temperature reaching 50°F or higher today, aligned with the National Weather Service's latest forecast projecting a daytime high near 66–67°F under mostly sunny skies and light west winds. This positioning stems from a stable upper-level ridge fostering above-normal temperatures, consistent with recent NOAA model runs (GFS, ECMWF) showing minimal cloud cover and no disruptive fronts through sunset. Current morning observations already exceed 50°F at Seattle-Tacoma International Airport, the likely resolution station. Realistic challenges—such as sudden marine layer thickening or an unanticipated wind shift from the Strait of Juan de Fuca—remain improbable given steering patterns, though hourly updates from NWS could refine the outlook into evening.
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 18?
Highest temperature in Seattle on April 18?
50°F or higher 100.0%
31°F or below <1%
32-33°F <1%
34-35°F <1%
$72,849 Vol.
$72,849 Vol.
Apr 18, 2026
31°F or below
No
32-33°F
No
34-35°F
No
36-37°F
No
38-39°F
No
40-41°F
No
42-43°F
No
44-45°F
No
46-47°F
No
48-49°F
No
50°F or higher
Yes
50°F or higher 100.0%
31°F or below <1%
32-33°F <1%
34-35°F <1%
$72,849 Vol.
$72,849 Vol.
Apr 18, 2026
31°F or below
$5,250 Vol.
No
32-33°F
$4,723 Vol.
No
34-35°F
$4,290 Vol.
No
36-37°F
$4,782 Vol.
No
38-39°F
$3,695 Vol.
No
40-41°F
$4,903 Vol.
No
42-43°F
$5,321 Vol.
No
44-45°F
$7,783 Vol.
No
46-47°F
$4,328 Vol.
No
48-49°F
$7,854 Vol.
No
50°F or higher
$19,921 Vol.
Yes
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 18 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 on Polymarket assigns near-certainty (100%) to Seattle's highest temperature reaching 50°F or higher today, aligned with the National Weather Service's latest forecast projecting a daytime high near 66–67°F under mostly sunny skies and light west winds. This positioning stems from a stable upper-level ridge fostering above-normal temperatures, consistent with recent NOAA model runs (GFS, ECMWF) showing minimal cloud cover and no disruptive fronts through sunset. Current morning observations already exceed 50°F at Seattle-Tacoma International Airport, the likely resolution station. Realistic challenges—such as sudden marine layer thickening or an unanticipated wind shift from the Strait of Juan de Fuca—remain improbable given steering patterns, though hourly updates from NWS could refine the outlook into evening.
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 18 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 16, 2026, 12:40 AM ET
Volume
$72,849End Date
Apr 18, 2026Market Opened
Apr 16, 2026, 12:40 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 18 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 on Polymarket assigns near-certainty (100%) to Seattle's highest temperature reaching 50°F or higher today, aligned with the National Weather Service's latest forecast projecting a daytime high near 66–67°F under mostly sunny skies and light west winds. This positioning stems from a stable upper-level ridge fostering above-normal temperatures, consistent with recent NOAA model runs (GFS, ECMWF) showing minimal cloud cover and no disruptive fronts through sunset. Current morning observations already exceed 50°F at Seattle-Tacoma International Airport, the likely resolution station. Realistic challenges—such as sudden marine layer thickening or an unanticipated wind shift from the Strait of Juan de Fuca—remain improbable given steering patterns, though hourly updates from NWS could refine the outlook into evening.
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 18 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
$72,849End Date
Apr 18, 2026Market Opened
Apr 16, 2026, 12:40 AM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket assigns near-certainty (100%) to Seattle's highest temperature reaching 50°F or higher today, aligned with the National Weather Service's latest forecast projecting a daytime high near 66–67°F under mostly sunny skies and light west winds. This positioning stems from a stable upper-level ridge fostering above-normal temperatures, consistent with recent NOAA model runs (GFS, ECMWF) showing minimal cloud cover and no disruptive fronts through sunset. Current morning observations already exceed 50°F at Seattle-Tacoma International Airport, the likely resolution station. Realistic challenges—such as sudden marine layer thickening or an unanticipated wind shift from the Strait of Juan de Fuca—remain improbable given steering patterns, though hourly updates from NWS could refine the outlook into evening.
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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