**Forecast models from NOAA and private sources indicate a Monday night low in Seattle likely settling in the mid-50s°F, with trader consensus favoring 54–57°F ranges.** Onshore flow from the Pacific and a marine layer will moderate overnight cooling, while increasing cloud cover and a chance of light drizzle on September 7 reduce radiative heat loss compared to clear conditions. Historical September averages near 54–55°F at Sea-Tac provide context, and recent early-month lows of 52–57°F align with current steering patterns. Minor model spreads arise from exact timing of any marine push or wind shifts, keeping probabilities tightly clustered rather than decisive. Updated NWS guidance and evening model runs will refine the final minimum before overnight observations resolve the market.
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 42%
54-55°F 41%
52-53°F 28%
58-59°F 23%
47°F or below
<1%
48-49°F
7%
50-51°F
17%
52-53°F
28%
54-55°F
41%
56-57°F
42%
58-59°F
23%
60-61°F
14%
62-63°F
7%
64-65°F
<1%
66°F or higher
<1%
56-57°F 42%
54-55°F 41%
52-53°F 28%
58-59°F 23%
47°F or below
<1%
48-49°F
7%
50-51°F
17%
52-53°F
28%
54-55°F
41%
56-57°F
42%
58-59°F
23%
60-61°F
14%
62-63°F
7%
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...**Forecast models from NOAA and private sources indicate a Monday night low in Seattle likely settling in the mid-50s°F, with trader consensus favoring 54–57°F ranges.** Onshore flow from the Pacific and a marine layer will moderate overnight cooling, while increasing cloud cover and a chance of light drizzle on September 7 reduce radiative heat loss compared to clear conditions. Historical September averages near 54–55°F at Sea-Tac provide context, and recent early-month lows of 52–57°F align with current steering patterns. Minor model spreads arise from exact timing of any marine push or wind shifts, keeping probabilities tightly clustered rather than decisive. Updated NWS guidance and evening model runs will refine the final minimum before overnight observations resolve the market.
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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