**Forecast models and National Weather Service guidance point to a mid-60s high in Seattle on September 23, driven by persistent onshore flow from an upper-level trough over the Gulf of Alaska.** This marine-influenced air mass, combined with morning clouds transitioning to partly sunny skies and light southwest winds, limits daytime heating and keeps temperatures slightly below seasonal normals. Multiple runs show highs clustered around 63–68°F, with SeaTac observations expected to resolve the market. Recent weak disturbances have added minor shower chances without significantly altering the thermal profile. Trader consensus, reflected in the 43.5% implied probability for 66–67°F, aligns with this narrow forecast range, while lower probabilities for 70°F+ or sub-64°F outcomes underscore limited upside potential from the current setup. Updated model guidance and the official daily maximum will be key near-term catalysts.
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 September 23?
Highest temperature in Seattle on September 23?
66-67°F 44%
64-65°F 26%
68-69°F 15%
62-63°F 12%
NEW
NEW
Sep 23, 2026
55°F or below
<1%
56-57°F
<1%
58-59°F
<1%
60-61°F
4%
62-63°F
12%
64-65°F
26%
66-67°F
44%
68-69°F
15%
70-71°F
5%
72-73°F
<1%
74°F or higher
<1%
66-67°F 44%
64-65°F 26%
68-69°F 15%
62-63°F 12%
NEW
NEW
Sep 23, 2026
55°F or below
$201 Vol.
<1%
56-57°F
$124 Vol.
<1%
58-59°F
$2,092 Vol.
<1%
60-61°F
$728 Vol.
4%
62-63°F
$1,983 Vol.
12%
64-65°F
$1,293 Vol.
26%
66-67°F
$821 Vol.
44%
68-69°F
$1,694 Vol.
15%
70-71°F
$522 Vol.
5%
72-73°F
$96 Vol.
<1%
74°F or higher
$105 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 23 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.**Forecast models and National Weather Service guidance point to a mid-60s high in Seattle on September 23, driven by persistent onshore flow from an upper-level trough over the Gulf of Alaska.** This marine-influenced air mass, combined with morning clouds transitioning to partly sunny skies and light southwest winds, limits daytime heating and keeps temperatures slightly below seasonal normals. Multiple runs show highs clustered around 63–68°F, with SeaTac observations expected to resolve the market. Recent weak disturbances have added minor shower chances without significantly altering the thermal profile. Trader consensus, reflected in the 43.5% implied probability for 66–67°F, aligns with this narrow forecast range, while lower probabilities for 70°F+ or sub-64°F outcomes underscore limited upside potential from the current setup. Updated model guidance and the official daily maximum will be key near-term catalysts.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 23 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 21, 2026, 7:55 AM ET
Volume
$9,661End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 23 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.**Forecast models and National Weather Service guidance point to a mid-60s high in Seattle on September 23, driven by persistent onshore flow from an upper-level trough over the Gulf of Alaska.** This marine-influenced air mass, combined with morning clouds transitioning to partly sunny skies and light southwest winds, limits daytime heating and keeps temperatures slightly below seasonal normals. Multiple runs show highs clustered around 63–68°F, with SeaTac observations expected to resolve the market. Recent weak disturbances have added minor shower chances without significantly altering the thermal profile. Trader consensus, reflected in the 43.5% implied probability for 66–67°F, aligns with this narrow forecast range, while lower probabilities for 70°F+ or sub-64°F outcomes underscore limited upside potential from the current setup. Updated model guidance and the official daily maximum will be key near-term catalysts.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 23 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksea
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$9,661End Date
Sep 23, 2026Market Opened
Sep 21, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...**Forecast models and National Weather Service guidance point to a mid-60s high in Seattle on September 23, driven by persistent onshore flow from an upper-level trough over the Gulf of Alaska.** This marine-influenced air mass, combined with morning clouds transitioning to partly sunny skies and light southwest winds, limits daytime heating and keeps temperatures slightly below seasonal normals. Multiple runs show highs clustered around 63–68°F, with SeaTac observations expected to resolve the market. Recent weak disturbances have added minor shower chances without significantly altering the thermal profile. Trader consensus, reflected in the 43.5% implied probability for 66–67°F, aligns with this narrow forecast range, while lower probabilities for 70°F+ or sub-64°F outcomes underscore limited upside potential from the current setup. Updated model guidance and the official daily maximum will be key near-term catalysts.
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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