National Weather Service forecasts for San Francisco on September 24 project an overnight low near 58°F under partly cloudy conditions, consistent with a mid-week warming trend from ridging that gives way to a trough-driven cooldown by Friday. This places the expected minimum above the 1991–2020 average of 55.6°F yet well short of the 50°F record low, reflecting typical marine-layer moderation and onshore westerly flow that limits radiative cooling in the urban heat island. Trader consensus near 50% for 49°F or below versus 49% for 68°F or higher highlights uncertainty in exact boundary-layer mixing and any late-day marine push, with resolution hinging on official observations at key stations like San Francisco International Airport.
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 24?
Lowest temperature in San Francisco on September 24?
49°F or below 93%
68°F or higher 89%
56-57°F 48%
66-67°F 38%
NEW
NEW
Sep 24, 2026
49°F or below
93%
50-51°F
20%
52-53°F
20%
54-55°F
20%
56-57°F
48%
58-59°F
23%
60-61°F
20%
62-63°F
20%
64-65°F
20%
66-67°F
38%
68°F or higher
89%
49°F or below 93%
68°F or higher 89%
56-57°F 48%
66-67°F 38%
NEW
NEW
Sep 24, 2026
49°F or below
$10 Vol.
93%
50-51°F
$0 Vol.
20%
52-53°F
$0 Vol.
20%
54-55°F
$0 Vol.
20%
56-57°F
$10 Vol.
48%
58-59°F
$0 Vol.
23%
60-61°F
$0 Vol.
20%
62-63°F
$0 Vol.
20%
64-65°F
$0 Vol.
20%
66-67°F
$10 Vol.
38%
68°F or higher
$10 Vol.
89%
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 24 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.National Weather Service forecasts for San Francisco on September 24 project an overnight low near 58°F under partly cloudy conditions, consistent with a mid-week warming trend from ridging that gives way to a trough-driven cooldown by Friday. This places the expected minimum above the 1991–2020 average of 55.6°F yet well short of the 50°F record low, reflecting typical marine-layer moderation and onshore westerly flow that limits radiative cooling in the urban heat island. Trader consensus near 50% for 49°F or below versus 49% for 68°F or higher highlights uncertainty in exact boundary-layer mixing and any late-day marine push, with resolution hinging on official observations at key stations like San Francisco International Airport.
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 24 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 22, 2026, 7:29 AM ET
Volume
$30End Date
Sep 24, 2026Market Opened
Sep 22, 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 24 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.National Weather Service forecasts for San Francisco on September 24 project an overnight low near 58°F under partly cloudy conditions, consistent with a mid-week warming trend from ridging that gives way to a trough-driven cooldown by Friday. This places the expected minimum above the 1991–2020 average of 55.6°F yet well short of the 50°F record low, reflecting typical marine-layer moderation and onshore westerly flow that limits radiative cooling in the urban heat island. Trader consensus near 50% for 49°F or below versus 49% for 68°F or higher highlights uncertainty in exact boundary-layer mixing and any late-day marine push, with resolution hinging on official observations at key stations like San Francisco International Airport.
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 24 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
$30End Date
Sep 24, 2026Market Opened
Sep 22, 2026, 7:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...National Weather Service forecasts for San Francisco on September 24 project an overnight low near 58°F under partly cloudy conditions, consistent with a mid-week warming trend from ridging that gives way to a trough-driven cooldown by Friday. This places the expected minimum above the 1991–2020 average of 55.6°F yet well short of the 50°F record low, reflecting typical marine-layer moderation and onshore westerly flow that limits radiative cooling in the urban heat island. Trader consensus near 50% for 49°F or below versus 49% for 68°F or higher highlights uncertainty in exact boundary-layer mixing and any late-day marine push, with resolution hinging on official observations at key stations like San Francisco International Airport.
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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