Current National Weather Service and ensemble model guidance indicate a minimum temperature in Seattle on September 17 most likely falling in the low to mid-50s°F, driven by clear skies, light northerly winds, and radiational cooling under high pressure typical for mid-September. This aligns with the 1991–2020 climatological average low of 52.9°F and recent daily observations showing similar overnight cooling without significant marine influence or cloud cover to moderate temperatures. Trader consensus around 52–55°F reflects the narrow uncertainty range in short-range forecasts, though minor shifts in dew points or wind could adjust the final reading within a few degrees before official measurement at Seattle-Tacoma International Airport.
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 17?
Lowest temperature in Seattle on September 17?
56-57°F 40%
54-55°F 35%
50-51°F 31%
52-53°F 22%
NEW
NEW
Sep 17, 2026
45°F or below
1%
46-47°F
9%
48-49°F
6%
50-51°F
31%
52-53°F
22%
54-55°F
35%
56-57°F
40%
58-59°F
9%
60-61°F
7%
62-63°F
2%
64°F or higher
1%
56-57°F 40%
54-55°F 35%
50-51°F 31%
52-53°F 22%
NEW
NEW
Sep 17, 2026
45°F or below
$0 Vol.
1%
46-47°F
$0 Vol.
9%
48-49°F
$0 Vol.
6%
50-51°F
$0 Vol.
31%
52-53°F
$0 Vol.
22%
54-55°F
$3 Vol.
35%
56-57°F
$0 Vol.
40%
58-59°F
$0 Vol.
9%
60-61°F
$0 Vol.
7%
62-63°F
$0 Vol.
2%
64°F or higher
$0 Vol.
1%
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 17 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.Current National Weather Service and ensemble model guidance indicate a minimum temperature in Seattle on September 17 most likely falling in the low to mid-50s°F, driven by clear skies, light northerly winds, and radiational cooling under high pressure typical for mid-September. This aligns with the 1991–2020 climatological average low of 52.9°F and recent daily observations showing similar overnight cooling without significant marine influence or cloud cover to moderate temperatures. Trader consensus around 52–55°F reflects the narrow uncertainty range in short-range forecasts, though minor shifts in dew points or wind could adjust the final reading within a few degrees before official measurement at Seattle-Tacoma International Airport.
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 17 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 15, 2026, 7:29 AM ET
Volume
$3End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 7:29 AM 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 17 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.Current National Weather Service and ensemble model guidance indicate a minimum temperature in Seattle on September 17 most likely falling in the low to mid-50s°F, driven by clear skies, light northerly winds, and radiational cooling under high pressure typical for mid-September. This aligns with the 1991–2020 climatological average low of 52.9°F and recent daily observations showing similar overnight cooling without significant marine influence or cloud cover to moderate temperatures. Trader consensus around 52–55°F reflects the narrow uncertainty range in short-range forecasts, though minor shifts in dew points or wind could adjust the final reading within a few degrees before official measurement at Seattle-Tacoma International Airport.
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 17 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
$3End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 7:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...Current National Weather Service and ensemble model guidance indicate a minimum temperature in Seattle on September 17 most likely falling in the low to mid-50s°F, driven by clear skies, light northerly winds, and radiational cooling under high pressure typical for mid-September. This aligns with the 1991–2020 climatological average low of 52.9°F and recent daily observations showing similar overnight cooling without significant marine influence or cloud cover to moderate temperatures. Trader consensus around 52–55°F reflects the narrow uncertainty range in short-range forecasts, though minor shifts in dew points or wind could adjust the final reading within a few degrees before official measurement at Seattle-Tacoma International Airport.
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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