Official observations from the National Weather Service and Weather Underground at San Francisco International Airport confirm the August 4, 2026, daily maximum reached the 72–73°F range, aligning with the market’s near-certain outcome. Persistent onshore flow and the marine layer moderated temperatures despite a broader California heat wave driven by high pressure, keeping coastal readings near seasonal norms of 69°F rather than the inland spikes above 100°F. Model consensus and real-time station data left little room for upward revisions. Only an unreported station anomaly or post-hoc data correction could realistically alter the recorded high, though historical verification protocols make such shifts improbable.
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 4?
Highest temperature in San Francisco on August 4?
72-73°F 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$49,652 Vol.
$49,652 Vol.
Aug 4, 2026
67°F or below
<1%
68-69°F
<1%
70-71°F
<1%
72-73°F
100%
74-75°F
<1%
76-77°F
<1%
78-79°F
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
<1%
86°F or higher
<1%
72-73°F 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$49,652 Vol.
$49,652 Vol.
Aug 4, 2026
67°F or below
$1,466 Vol.
<1%
68-69°F
$1,628 Vol.
<1%
70-71°F
$5,995 Vol.
<1%
72-73°F
$10,084 Vol.
100%
74-75°F
$3,759 Vol.
<1%
76-77°F
$6,498 Vol.
<1%
78-79°F
$4,182 Vol.
<1%
80-81°F
$5,267 Vol.
<1%
82-83°F
$4,037 Vol.
<1%
84-85°F
$4,417 Vol.
<1%
86°F or higher
$2,319 Vol.
<1%
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 4 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.Official observations from the National Weather Service and Weather Underground at San Francisco International Airport confirm the August 4, 2026, daily maximum reached the 72–73°F range, aligning with the market’s near-certain outcome. Persistent onshore flow and the marine layer moderated temperatures despite a broader California heat wave driven by high pressure, keeping coastal readings near seasonal norms of 69°F rather than the inland spikes above 100°F. Model consensus and real-time station data left little room for upward revisions. Only an unreported station anomaly or post-hoc data correction could realistically alter the recorded high, though historical verification protocols make such shifts improbable.
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 4 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 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 2, 2026, 9:05 PM ET
Volume
$49,652End Date
Aug 4, 2026Market Opened
Aug 2, 2026, 9:05 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...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 4 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.Official observations from the National Weather Service and Weather Underground at San Francisco International Airport confirm the August 4, 2026, daily maximum reached the 72–73°F range, aligning with the market’s near-certain outcome. Persistent onshore flow and the marine layer moderated temperatures despite a broader California heat wave driven by high pressure, keeping coastal readings near seasonal norms of 69°F rather than the inland spikes above 100°F. Model consensus and real-time station data left little room for upward revisions. Only an unreported station anomaly or post-hoc data correction could realistically alter the recorded high, though historical verification protocols make such shifts improbable.
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 4 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 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
$49,652End Date
Aug 4, 2026Market Opened
Aug 2, 2026, 9:05 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Official observations from the National Weather Service and Weather Underground at San Francisco International Airport confirm the August 4, 2026, daily maximum reached the 72–73°F range, aligning with the market’s near-certain outcome. Persistent onshore flow and the marine layer moderated temperatures despite a broader California heat wave driven by high pressure, keeping coastal readings near seasonal norms of 69°F rather than the inland spikes above 100°F. Model consensus and real-time station data left little room for upward revisions. Only an unreported station anomaly or post-hoc data correction could realistically alter the recorded high, though historical verification protocols make such shifts improbable.
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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