**Official National Weather Service forecasts for Seattle on September 7, 2026, project overnight lows in the lower to mid-50s under partly cloudy skies and light winds, supporting strong trader consensus around 56-57°F.** This aligns with the seasonal average low of 54.5°F and recent daily observations near 53°F, where clear conditions have enabled moderate radiational cooling without significant marine influence or frontal activity. Ensemble model runs show limited spread in minimum temperatures, reinforcing the market-implied odds. A realistic challenge would require unexpected increases in cloud cover, stronger onshore flow, or a warmer air mass advecting in before dawn, which could push the low above 58°F or below 55°F depending on timing.
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 7?
56-57°F 93%
48-49°F 8%
50-51°F 8%
54-55°F 5%
$1,020 Vol.
$1,020 Vol.
47°F or below
<1%
48-49°F
8%
50-51°F
8%
52-53°F
5%
54-55°F
5%
56-57°F
93%
58-59°F
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66°F or higher
<1%
56-57°F 93%
48-49°F 8%
50-51°F 8%
54-55°F 5%
$1,020 Vol.
$1,020 Vol.
47°F or below
<1%
48-49°F
8%
50-51°F
8%
52-53°F
5%
54-55°F
5%
56-57°F
93%
58-59°F
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66°F or higher
<1%
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 5, 2026, 7:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...**Official National Weather Service forecasts for Seattle on September 7, 2026, project overnight lows in the lower to mid-50s under partly cloudy skies and light winds, supporting strong trader consensus around 56-57°F.** This aligns with the seasonal average low of 54.5°F and recent daily observations near 53°F, where clear conditions have enabled moderate radiational cooling without significant marine influence or frontal activity. Ensemble model runs show limited spread in minimum temperatures, reinforcing the market-implied odds. A realistic challenge would require unexpected increases in cloud cover, stronger onshore flow, or a warmer air mass advecting in before dawn, which could push the low above 58°F or below 55°F depending on timing.
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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