Current forecast guidance from the National Weather Service and ensemble models indicates Seattle’s highest temperature on May 19 will reach the low-to-mid 60s under persistent onshore flow from the cool Pacific, which moderates daytime warming in the city’s maritime climate. This setup aligns with typical mid-May climatology near 65 °F and supports the market’s 96.6 % implied probability for 58 °F or higher. Minor model variations in wind direction or cloud cover could trim the high by a few degrees, yet even cooler scenarios remain well above the 58 °F threshold. Newer model runs and the next National Weather Service update will provide the clearest signals 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 19?
Highest temperature in Seattle on May 19?
58°F or higher 96.5%
56-57°F 2.9%
54-55°F <1%
52-53°F <1%
NEW
NEW
May 19, 2026
39°F or below
<1%
40-41°F
<1%
42-43°F
<1%
44-45°F
<1%
46-47°F
<1%
48-49°F
<1%
50-51°F
<1%
52-53°F
<1%
54-55°F
<1%
56-57°F
3%
58°F or higher
97%
58°F or higher 96.5%
56-57°F 2.9%
54-55°F <1%
52-53°F <1%
NEW
NEW
May 19, 2026
39°F or below
$747 Vol.
<1%
40-41°F
$660 Vol.
<1%
42-43°F
$660 Vol.
<1%
44-45°F
$660 Vol.
<1%
46-47°F
$660 Vol.
<1%
48-49°F
$660 Vol.
<1%
50-51°F
$597 Vol.
<1%
52-53°F
$875 Vol.
<1%
54-55°F
$426 Vol.
<1%
56-57°F
$248 Vol.
3%
58°F or higher
$354 Vol.
97%
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 19 May '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.Current forecast guidance from the National Weather Service and ensemble models indicates Seattle’s highest temperature on May 19 will reach the low-to-mid 60s under persistent onshore flow from the cool Pacific, which moderates daytime warming in the city’s maritime climate. This setup aligns with typical mid-May climatology near 65 °F and supports the market’s 96.6 % implied probability for 58 °F or higher. Minor model variations in wind direction or cloud cover could trim the high by a few degrees, yet even cooler scenarios remain well above the 58 °F threshold. Newer model runs and the next National Weather Service update will provide the clearest signals ahead of resolution.
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 19 May '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: May 17, 2026, 12:03 AM ET
Volume
$6,545End Date
May 19, 2026Market Opened
May 17, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEAThis market will resolve to the temperature range that contains the highest temperature recorded at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 19 May '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.Current forecast guidance from the National Weather Service and ensemble models indicates Seattle’s highest temperature on May 19 will reach the low-to-mid 60s under persistent onshore flow from the cool Pacific, which moderates daytime warming in the city’s maritime climate. This setup aligns with typical mid-May climatology near 65 °F and supports the market’s 96.6 % implied probability for 58 °F or higher. Minor model variations in wind direction or cloud cover could trim the high by a few degrees, yet even cooler scenarios remain well above the 58 °F threshold. Newer model runs and the next National Weather Service update will provide the clearest signals ahead of resolution.
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 19 May '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
$6,545End Date
May 19, 2026Market Opened
May 17, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/us/wa/seatac/KSEACurrent forecast guidance from the National Weather Service and ensemble models indicates Seattle’s highest temperature on May 19 will reach the low-to-mid 60s under persistent onshore flow from the cool Pacific, which moderates daytime warming in the city’s maritime climate. This setup aligns with typical mid-May climatology near 65 °F and supports the market’s 96.6 % implied probability for 58 °F or higher. Minor model variations in wind direction or cloud cover could trim the high by a few degrees, yet even cooler scenarios remain well above the 58 °F threshold. Newer model runs and the next National Weather Service update will provide the clearest signals 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
Beware of external links.
Beware of external links.
Frequently Asked Questions