Recent National Weather Service and model guidance for San Francisco on September 13 point to a typical late-summer marine layer with onshore westerly flow holding daytime highs near the 1991–2020 climatological average of 70.8°F. Multiple forecasts converge on 68–72°F under mostly sunny skies and breezy conditions, aligning with the market’s heavy weighting toward the 70–71°F bin. A brief early-September heat spell peaked at 94°F on the 9th but has since moderated, reducing upside risk. Traders appear to discount higher outliers given persistent northwest winds and the low probability of offshore flow or clear-sky amplification before resolution. Updated model runs and official NWS briefings tomorrow morning represent the next key data points likely to refine these implied probabilities.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in San Francisco on September 13?
70-71°F 56%
68-69°F 24%
72-73°F 14%
74-75°F 4%
61°F or below
<1%
62-63°F
1%
64-65°F
2%
66-67°F
4%
68-69°F
24%
70-71°F
56%
72-73°F
14%
74-75°F
4%
76-77°F
2%
78-79°F
1%
80°F or higher
<1%
70-71°F 56%
68-69°F 24%
72-73°F 14%
74-75°F 4%
61°F or below
<1%
62-63°F
1%
64-65°F
2%
66-67°F
4%
68-69°F
24%
70-71°F
56%
72-73°F
14%
74-75°F
4%
76-77°F
2%
78-79°F
1%
80°F or higher
<1%
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.
Binuksan ang Market: Sep 11, 2026, 7:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...Recent National Weather Service and model guidance for San Francisco on September 13 point to a typical late-summer marine layer with onshore westerly flow holding daytime highs near the 1991–2020 climatological average of 70.8°F. Multiple forecasts converge on 68–72°F under mostly sunny skies and breezy conditions, aligning with the market’s heavy weighting toward the 70–71°F bin. A brief early-September heat spell peaked at 94°F on the 9th but has since moderated, reducing upside risk. Traders appear to discount higher outliers given persistent northwest winds and the low probability of offshore flow or clear-sky amplification before resolution. Updated model runs and official NWS briefings tomorrow morning represent the next key data points likely to refine these implied probabilities.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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