Clear skies and light northwest winds are enabling strong daytime solar heating across the Seattle area today, with forecast models from NOAA and regional guidance converging on a daily maximum near 75°F at Sea-Tac and downtown stations. This aligns with the recent dry stretch after mid-month showers, allowing surface temperatures to climb several degrees above the 70.3°F September 17 climatological average. The narrow spread between the leading 74–75°F and 76–77°F market bins reflects minor differences in boundary-layer mixing depth and exact wind timing, while lower-probability bins account for the small chance of earlier marine air intrusion or thicker afternoon cloud development. Updated National Weather Service observations through midday will refine the final peak before resolution.
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 17?
Highest temperature in Seattle on September 17?
76-77°F 42%
74-75°F 37%
72-73°F 11%
78-79°F 6%
NEW
$10,754 Vol.
NEW
$10,754 Vol.
Sep 17, 2026
65°F or below
<1%
66-67°F
<1%
68-69°F
<1%
70-71°F
3%
72-73°F
11%
74-75°F
37%
76-77°F
42%
78-79°F
6%
80-81°F
<1%
82-83°F
<1%
84°F or higher
<1%
76-77°F 42%
74-75°F 37%
72-73°F 11%
78-79°F 6%
NEW
$10,754 Vol.
NEW
$10,754 Vol.
Sep 17, 2026
65°F or below
$148 Vol.
<1%
66-67°F
$213 Vol.
<1%
68-69°F
$824 Vol.
<1%
70-71°F
$1,330 Vol.
3%
72-73°F
$1,408 Vol.
11%
74-75°F
$2,706 Vol.
37%
76-77°F
$1,365 Vol.
42%
78-79°F
$902 Vol.
6%
80-81°F
$125 Vol.
<1%
82-83°F
$694 Vol.
<1%
84°F or higher
$1,039 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 17 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.Clear skies and light northwest winds are enabling strong daytime solar heating across the Seattle area today, with forecast models from NOAA and regional guidance converging on a daily maximum near 75°F at Sea-Tac and downtown stations. This aligns with the recent dry stretch after mid-month showers, allowing surface temperatures to climb several degrees above the 70.3°F September 17 climatological average. The narrow spread between the leading 74–75°F and 76–77°F market bins reflects minor differences in boundary-layer mixing depth and exact wind timing, while lower-probability bins account for the small chance of earlier marine air intrusion or thicker afternoon cloud development. Updated National Weather Service observations through midday will refine the final peak before resolution.
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 17 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 15, 2026, 7:55 AM ET
Volume
$10,754End Date
Sep 17, 2026Market Opened
Sep 15, 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 17 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.Clear skies and light northwest winds are enabling strong daytime solar heating across the Seattle area today, with forecast models from NOAA and regional guidance converging on a daily maximum near 75°F at Sea-Tac and downtown stations. This aligns with the recent dry stretch after mid-month showers, allowing surface temperatures to climb several degrees above the 70.3°F September 17 climatological average. The narrow spread between the leading 74–75°F and 76–77°F market bins reflects minor differences in boundary-layer mixing depth and exact wind timing, while lower-probability bins account for the small chance of earlier marine air intrusion or thicker afternoon cloud development. Updated National Weather Service observations through midday will refine the final peak before resolution.
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 17 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
$10,754End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 7:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kseaResolver
0x69c47De9D...Clear skies and light northwest winds are enabling strong daytime solar heating across the Seattle area today, with forecast models from NOAA and regional guidance converging on a daily maximum near 75°F at Sea-Tac and downtown stations. This aligns with the recent dry stretch after mid-month showers, allowing surface temperatures to climb several degrees above the 70.3°F September 17 climatological average. The narrow spread between the leading 74–75°F and 76–77°F market bins reflects minor differences in boundary-layer mixing depth and exact wind timing, while lower-probability bins account for the small chance of earlier marine air intrusion or thicker afternoon cloud development. Updated National Weather Service observations through midday will refine the final peak before resolution.
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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