Skip to main content
Market icon

Highest temperature in Seattle on April 18?

Market icon

Highest temperature in Seattle on April 18?

50°F or higher 99.0%

34-35°F <1%

48-49°F <1%

42-43°F <1%

Polymarket
NOVO

$11,510 Vol.

50°F or higher 99.0%

34-35°F <1%

48-49°F <1%

42-43°F <1%

Polymarket
NOVO

$11,510 Vol.

31°F or below

$483 Vol.

<1%

32-33°F

$445 Vol.

<1%

34-35°F

$420 Vol.

<1%

36-37°F

$523 Vol.

<1%

38-39°F

$1,348 Vol.

<1%

40-41°F

$615 Vol.

<1%

42-43°F

$618 Vol.

<1%

44-45°F

$609 Vol.

<1%

46-47°F

$598 Vol.

<1%

48-49°F

$730 Vol.

<1%

50°F or higher

$5,122 Vol.

99%

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 overwhelmingly favors Seattle's highest temperature reaching 50°F or higher on April 18, with 98.9% implied probability, driven by the latest National Weather Service forecasts projecting daytime highs of 54–65°F amid a developing high-pressure ridge over the Pacific Northwest. This aligns with NOAA's spring 2026 outlook for above-normal temperatures in western Washington, supported by ensemble model consensus from GFS and ECMWF showing persistent warm advection and minimal precipitation risk. Seattle's April climatology rarely sees highs below 50°F (less than 10% historical frequency), reinforcing the positioning. Realistic challenges include an unexpected influx of cool marine air or stalled frontal boundary suppressing peaks by 5–10°F, though current soundings and 48-hour trend indicate low likelihood; monitor afternoon model updates for refinements.

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.
Volume
$11,510
Data de Término
18 abr 2026
Mercado Aberto
Apr 16, 2026, 12:40 AM ET
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.
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 overwhelmingly favors Seattle's highest temperature reaching 50°F or higher on April 18, with 98.9% implied probability, driven by the latest National Weather Service forecasts projecting daytime highs of 54–65°F amid a developing high-pressure ridge over the Pacific Northwest. This aligns with NOAA's spring 2026 outlook for above-normal temperatures in western Washington, supported by ensemble model consensus from GFS and ECMWF showing persistent warm advection and minimal precipitation risk. Seattle's April climatology rarely sees highs below 50°F (less than 10% historical frequency), reinforcing the positioning. Realistic challenges include an unexpected influx of cool marine air or stalled frontal boundary suppressing peaks by 5–10°F, though current soundings and 48-hour trend indicate low likelihood; monitor afternoon model updates for refinements.

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.
Volume
$11,510
Data de Término
18 abr 2026
Mercado Aberto
Apr 16, 2026, 12:40 AM ET
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.

Cuidado com os links externos.

Frequently Asked Questions

"Highest temperature in Seattle on April 18?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "50°F or higher" at 99%, followed by "31°F or below" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 99¢ implies that the market collectively assigns a 99% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Highest temperature in Seattle on April 18?" has generated $11.5K in total trading volume since the market launched on Apr 16, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in Seattle on April 18?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Seattle on April 18?" is "50°F or higher" at 99%, meaning the market assigns a 99% chance to that outcome. The next closest outcome is "31°F or below" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Seattle on April 18?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.