Recent forecasts from sources including the National Weather Service and private models point to overnight lows in the mid- to upper-50s°F for San Francisco on September 7, aligning with the 1991–2020 climatological average low of 56.1°F and the recent cooling trend from 60–61°F minima earlier in the month. Persistent marine influence and light winds under mostly clear to partly cloudy skies support radiative cooling into this range without significant cold-air advection or marine-layer deepening that could push readings lower. Market-implied odds concentrate on 54–57°F bins because models show low dispersion around these values, while probabilities drop sharply outside the historical interquartile range for early September. Official NWS observations from downtown or airport stations will determine resolution once the calendar day ends.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in San Francisco on September 7?
Lowest temperature in San Francisco on September 7?
56-57°F 60%
58-59°F 50%
60-61°F 44%
62-63°F 44%
NEW
NEW
Sep 7, 2026
47°F or below
1%
48-49°F
16%
50-51°F
33%
52-53°F
27%
54-55°F
31%
56-57°F
44%
58-59°F
50%
60-61°F
44%
62-63°F
44%
64-65°F
16%
66°F or higher
25%
56-57°F 60%
58-59°F 50%
60-61°F 44%
62-63°F 44%
NEW
NEW
Sep 7, 2026
47°F or below
$18 Vol.
1%
48-49°F
$0 Vol.
16%
50-51°F
$5 Vol.
33%
52-53°F
$0 Vol.
27%
54-55°F
$0 Vol.
31%
56-57°F
$65 Vol.
44%
58-59°F
$0 Vol.
50%
60-61°F
$20 Vol.
44%
62-63°F
$0 Vol.
44%
64-65°F
$0 Vol.
16%
66°F or higher
$0 Vol.
25%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 7 Sep '26.
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=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.Recent forecasts from sources including the National Weather Service and private models point to overnight lows in the mid- to upper-50s°F for San Francisco on September 7, aligning with the 1991–2020 climatological average low of 56.1°F and the recent cooling trend from 60–61°F minima earlier in the month. Persistent marine influence and light winds under mostly clear to partly cloudy skies support radiative cooling into this range without significant cold-air advection or marine-layer deepening that could push readings lower. Market-implied odds concentrate on 54–57°F bins because models show low dispersion around these values, while probabilities drop sharply outside the historical interquartile range for early September. Official NWS observations from downtown or airport stations will determine resolution once the calendar day ends.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 7 Sep '26.
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=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 lowest 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 5, 2026, 7:29 AM ET
Volume
$108End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 7:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 7 Sep '26.
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=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.Recent forecasts from sources including the National Weather Service and private models point to overnight lows in the mid- to upper-50s°F for San Francisco on September 7, aligning with the 1991–2020 climatological average low of 56.1°F and the recent cooling trend from 60–61°F minima earlier in the month. Persistent marine influence and light winds under mostly clear to partly cloudy skies support radiative cooling into this range without significant cold-air advection or marine-layer deepening that could push readings lower. Market-implied odds concentrate on 54–57°F bins because models show low dispersion around these values, while probabilities drop sharply outside the historical interquartile range for early September. Official NWS observations from downtown or airport stations will determine resolution once the calendar day ends.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 7 Sep '26.
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=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 lowest 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
$108End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 7:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...Recent forecasts from sources including the National Weather Service and private models point to overnight lows in the mid- to upper-50s°F for San Francisco on September 7, aligning with the 1991–2020 climatological average low of 56.1°F and the recent cooling trend from 60–61°F minima earlier in the month. Persistent marine influence and light winds under mostly clear to partly cloudy skies support radiative cooling into this range without significant cold-air advection or marine-layer deepening that could push readings lower. Market-implied odds concentrate on 54–57°F bins because models show low dispersion around these values, while probabilities drop sharply outside the historical interquartile range for early September. Official NWS observations from downtown or airport stations will determine resolution once the calendar day ends.
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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