Recent National Weather Service forecasts for Seattle project an overnight low near 53°F on September 15, as a low-pressure system exits and high pressure builds offshore, promoting partial clearing after weekend rain. This setup favors moderate radiational cooling overnight under partly cloudy skies, tempered by the region's marine influence and light northerly winds that limit extreme drops. Ensemble models show tight clustering around mid-50s minima, though minor variations in cloud timing or wind mixing could shift the exact low by a few degrees. With historical September 15 averages near 53°F, trader odds reflect this narrow uncertainty band across the 50–57°F ranges rather than any major pattern shift.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Seattle on September 15?
Lowest temperature in Seattle on September 15?
64°F or higher 47%
45°F or below 45%
54-55°F 40%
56-57°F 40%
NEW
NEW
Sep 15, 2026
45°F or below
45%
46-47°F
39%
48-49°F
39%
50-51°F
39%
52-53°F
21%
54-55°F
40%
56-57°F
40%
58-59°F
39%
60-61°F
39%
62-63°F
39%
64°F or higher
47%
64°F or higher 47%
45°F or below 45%
54-55°F 40%
56-57°F 40%
NEW
NEW
Sep 15, 2026
45°F or below
$0 Vol.
45%
46-47°F
$37 Vol.
39%
48-49°F
$0 Vol.
39%
50-51°F
$43 Vol.
39%
52-53°F
$0 Vol.
21%
54-55°F
$0 Vol.
40%
56-57°F
$0 Vol.
40%
58-59°F
$0 Vol.
39%
60-61°F
$0 Vol.
39%
62-63°F
$0 Vol.
39%
64°F or higher
$0 Vol.
47%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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.Recent National Weather Service forecasts for Seattle project an overnight low near 53°F on September 15, as a low-pressure system exits and high pressure builds offshore, promoting partial clearing after weekend rain. This setup favors moderate radiational cooling overnight under partly cloudy skies, tempered by the region's marine influence and light northerly winds that limit extreme drops. Ensemble models show tight clustering around mid-50s minima, though minor variations in cloud timing or wind mixing could shift the exact low by a few degrees. With historical September 15 averages near 53°F, trader odds reflect this narrow uncertainty band across the 50–57°F ranges rather than any major pattern shift.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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 lowest 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 13, 2026, 1:29 PM ET
Volume
$81End Date
Sep 15, 2026Market Opened
Sep 13, 2026, 1:29 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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.Recent National Weather Service forecasts for Seattle project an overnight low near 53°F on September 15, as a low-pressure system exits and high pressure builds offshore, promoting partial clearing after weekend rain. This setup favors moderate radiational cooling overnight under partly cloudy skies, tempered by the region's marine influence and light northerly winds that limit extreme drops. Ensemble models show tight clustering around mid-50s minima, though minor variations in cloud timing or wind mixing could shift the exact low by a few degrees. With historical September 15 averages near 53°F, trader odds reflect this narrow uncertainty band across the 50–57°F ranges rather than any major pattern shift.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Seattle-Tacoma International Airport Station in degrees Fahrenheit on 15 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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 lowest 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
$81End Date
Sep 15, 2026Market Opened
Sep 13, 2026, 1:29 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...Recent National Weather Service forecasts for Seattle project an overnight low near 53°F on September 15, as a low-pressure system exits and high pressure builds offshore, promoting partial clearing after weekend rain. This setup favors moderate radiational cooling overnight under partly cloudy skies, tempered by the region's marine influence and light northerly winds that limit extreme drops. Ensemble models show tight clustering around mid-50s minima, though minor variations in cloud timing or wind mixing could shift the exact low by a few degrees. With historical September 15 averages near 53°F, trader odds reflect this narrow uncertainty band across the 50–57°F ranges rather than any major pattern shift.
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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