Trader consensus on the San Francisco highest temperature for August 13 centers on 66-69°F ranges because official National Weather Service and model guidance project a moderate high under persistent marine layer influence typical of mid-August along the coast. San Francisco’s location exposes it to cool Pacific air and onshore flow that caps daytime warming, with climatological August highs averaging near 70°F but frequently held to the mid-60s when stratus or fog lingers into the afternoon. Recent model runs show no strong offshore warming or heat advection, keeping the distribution tightly clustered around these bins while leaving modest probability for slight upward revision if clearing occurs earlier than expected. Updated National Weather Service forecasts and satellite trends tomorrow morning will provide the final inputs ahead of market 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 August 13?
Highest temperature in San Francisco on August 13?
66-67°F 37%
68-69°F 28%
64-65°F 14%
70-71°F 11%
NEW
NEW
Aug 13, 2026
57°F or below
<1%
58-59°F
1%
60-61°F
1%
62-63°F
5%
64-65°F
14%
66-67°F
37%
68-69°F
28%
70-71°F
11%
72-73°F
4%
74-75°F
2%
76°F or higher
<1%
66-67°F 37%
68-69°F 28%
64-65°F 14%
70-71°F 11%
NEW
NEW
Aug 13, 2026
57°F or below
$77 Vol.
<1%
58-59°F
$50 Vol.
1%
60-61°F
$36 Vol.
1%
62-63°F
$4 Vol.
5%
64-65°F
$156 Vol.
14%
66-67°F
$42 Vol.
37%
68-69°F
$26 Vol.
28%
70-71°F
$22 Vol.
11%
72-73°F
$88 Vol.
4%
74-75°F
$649 Vol.
2%
76°F or higher
$91 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Trader consensus on the San Francisco highest temperature for August 13 centers on 66-69°F ranges because official National Weather Service and model guidance project a moderate high under persistent marine layer influence typical of mid-August along the coast. San Francisco’s location exposes it to cool Pacific air and onshore flow that caps daytime warming, with climatological August highs averaging near 70°F but frequently held to the mid-60s when stratus or fog lingers into the afternoon. Recent model runs show no strong offshore warming or heat advection, keeping the distribution tightly clustered around these bins while leaving modest probability for slight upward revision if clearing occurs earlier than expected. Updated National Weather Service forecasts and satellite trends tomorrow morning will provide the final inputs ahead of market resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 11, 2026, 9:03 PM ET
Volume
$1,242End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Trader consensus on the San Francisco highest temperature for August 13 centers on 66-69°F ranges because official National Weather Service and model guidance project a moderate high under persistent marine layer influence typical of mid-August along the coast. San Francisco’s location exposes it to cool Pacific air and onshore flow that caps daytime warming, with climatological August highs averaging near 70°F but frequently held to the mid-60s when stratus or fog lingers into the afternoon. Recent model runs show no strong offshore warming or heat advection, keeping the distribution tightly clustered around these bins while leaving modest probability for slight upward revision if clearing occurs earlier than expected. Updated National Weather Service forecasts and satellite trends tomorrow morning will provide the final inputs ahead of market resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$1,242End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Trader consensus on the San Francisco highest temperature for August 13 centers on 66-69°F ranges because official National Weather Service and model guidance project a moderate high under persistent marine layer influence typical of mid-August along the coast. San Francisco’s location exposes it to cool Pacific air and onshore flow that caps daytime warming, with climatological August highs averaging near 70°F but frequently held to the mid-60s when stratus or fog lingers into the afternoon. Recent model runs show no strong offshore warming or heat advection, keeping the distribution tightly clustered around these bins while leaving modest probability for slight upward revision if clearing occurs earlier than expected. Updated National Weather Service forecasts and satellite trends tomorrow morning will provide the final inputs ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions