The dominant marine layer over the San Francisco Bay Area, reinforced by persistent onshore flow and coastal upwelling of cold Pacific waters, is anchoring trader sentiment toward a peak temperature of 66–71°F on August 13. This classic summer pattern, with stratus clouds and fog limiting solar heating, aligns with climatological norms near 68°F and recent National Weather Service guidance showing no strong offshore winds or heat intrusion to push readings higher. Model consensus and absence of anomalous warming have concentrated implied probabilities on the 68–69°F bin at 41%, with adjacent ranges capturing residual forecast spread. Updated runs from NOAA and local observations will refine resolution thresholds for the daily maximum at official stations.
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?
68-69°F 42%
70-71°F 25%
66-67°F 25%
64-65°F 6%
NEW
$12,173 Vol.
NEW
$12,173 Vol.
Aug 13, 2026
57°F or below
<1%
58-59°F
1%
60-61°F
1%
62-63°F
3%
64-65°F
6%
66-67°F
25%
68-69°F
42%
70-71°F
25%
72-73°F
4%
74-75°F
<1%
76°F or higher
<1%
68-69°F 42%
70-71°F 25%
66-67°F 25%
64-65°F 6%
NEW
$12,173 Vol.
NEW
$12,173 Vol.
Aug 13, 2026
57°F or below
$1,388 Vol.
<1%
58-59°F
$625 Vol.
1%
60-61°F
$1,445 Vol.
1%
62-63°F
$1,182 Vol.
3%
64-65°F
$1,485 Vol.
6%
66-67°F
$815 Vol.
25%
68-69°F
$953 Vol.
42%
70-71°F
$1,213 Vol.
25%
72-73°F
$1,179 Vol.
4%
74-75°F
$1,542 Vol.
<1%
76°F or higher
$346 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.The dominant marine layer over the San Francisco Bay Area, reinforced by persistent onshore flow and coastal upwelling of cold Pacific waters, is anchoring trader sentiment toward a peak temperature of 66–71°F on August 13. This classic summer pattern, with stratus clouds and fog limiting solar heating, aligns with climatological norms near 68°F and recent National Weather Service guidance showing no strong offshore winds or heat intrusion to push readings higher. Model consensus and absence of anomalous warming have concentrated implied probabilities on the 68–69°F bin at 41%, with adjacent ranges capturing residual forecast spread. Updated runs from NOAA and local observations will refine resolution thresholds for the daily maximum at official stations.
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
$12,173End 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.The dominant marine layer over the San Francisco Bay Area, reinforced by persistent onshore flow and coastal upwelling of cold Pacific waters, is anchoring trader sentiment toward a peak temperature of 66–71°F on August 13. This classic summer pattern, with stratus clouds and fog limiting solar heating, aligns with climatological norms near 68°F and recent National Weather Service guidance showing no strong offshore winds or heat intrusion to push readings higher. Model consensus and absence of anomalous warming have concentrated implied probabilities on the 68–69°F bin at 41%, with adjacent ranges capturing residual forecast spread. Updated runs from NOAA and local observations will refine resolution thresholds for the daily maximum at official stations.
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
$12,173End 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...The dominant marine layer over the San Francisco Bay Area, reinforced by persistent onshore flow and coastal upwelling of cold Pacific waters, is anchoring trader sentiment toward a peak temperature of 66–71°F on August 13. This classic summer pattern, with stratus clouds and fog limiting solar heating, aligns with climatological norms near 68°F and recent National Weather Service guidance showing no strong offshore winds or heat intrusion to push readings higher. Model consensus and absence of anomalous warming have concentrated implied probabilities on the 68–69°F bin at 41%, with adjacent ranges capturing residual forecast spread. Updated runs from NOAA and local observations will refine resolution thresholds for the daily maximum at official stations.
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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