**Forecast models and official guidance from the National Weather Service point to a sunny Sunday in San Francisco with highs centered near 70–72°F, aligning with the market’s leading 70–71°F (43%) and 72–73°F (24%) bins.** Clearing skies after recent marine-layer influence and a shift toward offshore flow are supporting modest warming from today’s cooler readings, while persistent westerly winds and the typical September marine layer keep temperatures from exceeding the mid-70s. Historical averages for September 13 sit at approximately 71°F, providing climatological context for the tight clustering around 70–73°F. Traders appear to be weighting the consensus of short-range models and NWS point forecasts, with limited upside risk from stronger high-pressure ridging or downside from renewed coastal stratus. The next NWS forecast discussion and updated model runs will offer the clearest near-term signal ahead of 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 San Francisco on September 13?
Highest temperature in San Francisco on September 13?
70-71°F 44%
72-73°F 26%
66-67°F 18%
68-69°F 17%
NEW
NEW
Sep 13, 2026
61°F or below
2%
62-63°F
2%
64-65°F
4%
66-67°F
18%
68-69°F
17%
70-71°F
44%
72-73°F
26%
74-75°F
15%
76-77°F
5%
78-79°F
3%
80°F or higher
2%
70-71°F 44%
72-73°F 26%
66-67°F 18%
68-69°F 17%
NEW
NEW
Sep 13, 2026
61°F or below
$2 Vol.
2%
62-63°F
$0 Vol.
2%
64-65°F
$0 Vol.
4%
66-67°F
$0 Vol.
18%
68-69°F
$6 Vol.
17%
70-71°F
$151 Vol.
44%
72-73°F
$0 Vol.
26%
74-75°F
$0 Vol.
15%
76-77°F
$0 Vol.
5%
78-79°F
$0 Vol.
3%
80°F or higher
$0 Vol.
2%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 13 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=ksfo
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.**Forecast models and official guidance from the National Weather Service point to a sunny Sunday in San Francisco with highs centered near 70–72°F, aligning with the market’s leading 70–71°F (43%) and 72–73°F (24%) bins.**
Clearing skies after recent marine-layer influence and a shift toward offshore flow are supporting modest warming from today’s cooler readings, while persistent westerly winds and the typical September marine layer keep temperatures from exceeding the mid-70s. Historical averages for September 13 sit at approximately 71°F, providing climatological context for the tight clustering around 70–73°F. Traders appear to be weighting the consensus of short-range models and NWS point forecasts, with limited upside risk from stronger high-pressure ridging or downside from renewed coastal stratus. The next NWS forecast discussion and updated model runs will offer the clearest near-term signal ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 13 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=ksfo
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=ksfo
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 11, 2026, 7:56 AM ET
Volume
$159End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 7:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 13 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=ksfo
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.**Forecast models and official guidance from the National Weather Service point to a sunny Sunday in San Francisco with highs centered near 70–72°F, aligning with the market’s leading 70–71°F (43%) and 72–73°F (24%) bins.**
Clearing skies after recent marine-layer influence and a shift toward offshore flow are supporting modest warming from today’s cooler readings, while persistent westerly winds and the typical September marine layer keep temperatures from exceeding the mid-70s. Historical averages for September 13 sit at approximately 71°F, providing climatological context for the tight clustering around 70–73°F. Traders appear to be weighting the consensus of short-range models and NWS point forecasts, with limited upside risk from stronger high-pressure ridging or downside from renewed coastal stratus. The next NWS forecast discussion and updated model runs will offer the clearest near-term signal ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 13 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=ksfo
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=ksfo
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
$159End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 7:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...**Forecast models and official guidance from the National Weather Service point to a sunny Sunday in San Francisco with highs centered near 70–72°F, aligning with the market’s leading 70–71°F (43%) and 72–73°F (24%) bins.** Clearing skies after recent marine-layer influence and a shift toward offshore flow are supporting modest warming from today’s cooler readings, while persistent westerly winds and the typical September marine layer keep temperatures from exceeding the mid-70s. Historical averages for September 13 sit at approximately 71°F, providing climatological context for the tight clustering around 70–73°F. Traders appear to be weighting the consensus of short-range models and NWS point forecasts, with limited upside risk from stronger high-pressure ridging or downside from renewed coastal stratus. The next NWS forecast discussion and updated model runs will offer the clearest near-term signal ahead of 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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