San Francisco's measured high temperature on July 31 reached 72–73°F, aligning with the market's complete consensus. This outcome reflects the city's typical summer regime driven by the persistent marine layer and onshore flow from the Pacific, which caps daytime warming near the coast. Official observations from stations such as San Francisco International Airport recorded values within this narrow band, consistent with July climatology showing average highs of 70–72°F and limited variability. Model guidance from NOAA and similar agencies reinforced this range days in advance, with minimal spread across ensemble runs. A sudden breakdown of the marine inversion or strong offshore winds could have pushed readings higher, but no such synoptic shift materialized before the observation window closed.
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 July 31?
Highest temperature in San Francisco on July 31?
72-73°F 100.0%
63°F or below <1%
64-65°F <1%
66-67°F <1%
$35,828 Vol.
$35,828 Vol.
Jul 31, 2026
63°F or below
No
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
No
72-73°F
Yes
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
No
82°F or higher
No
72-73°F 100.0%
63°F or below <1%
64-65°F <1%
66-67°F <1%
$35,828 Vol.
$35,828 Vol.
Jul 31, 2026
63°F or below
$819 Vol.
No
64-65°F
$546 Vol.
No
66-67°F
$8,084 Vol.
No
68-69°F
$2,354 Vol.
No
70-71°F
$4,059 Vol.
No
72-73°F
$6,079 Vol.
Yes
74-75°F
$2,736 Vol.
No
76-77°F
$5,423 Vol.
No
78-79°F
$3,666 Vol.
No
80-81°F
$1,539 Vol.
No
82°F or higher
$523 Vol.
No
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 31 Jul '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.San Francisco's measured high temperature on July 31 reached 72–73°F, aligning with the market's complete consensus. This outcome reflects the city's typical summer regime driven by the persistent marine layer and onshore flow from the Pacific, which caps daytime warming near the coast. Official observations from stations such as San Francisco International Airport recorded values within this narrow band, consistent with July climatology showing average highs of 70–72°F and limited variability. Model guidance from NOAA and similar agencies reinforced this range days in advance, with minimal spread across ensemble runs. A sudden breakdown of the marine inversion or strong offshore winds could have pushed readings higher, but no such synoptic shift materialized before the observation window closed.
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 31 Jul '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: Jul 29, 2026, 10:03 PM ET
Volume
$35,828End Date
Jul 31, 2026Market Opened
Jul 29, 2026, 10:03 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 31 Jul '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.San Francisco's measured high temperature on July 31 reached 72–73°F, aligning with the market's complete consensus. This outcome reflects the city's typical summer regime driven by the persistent marine layer and onshore flow from the Pacific, which caps daytime warming near the coast. Official observations from stations such as San Francisco International Airport recorded values within this narrow band, consistent with July climatology showing average highs of 70–72°F and limited variability. Model guidance from NOAA and similar agencies reinforced this range days in advance, with minimal spread across ensemble runs. A sudden breakdown of the marine inversion or strong offshore winds could have pushed readings higher, but no such synoptic shift materialized before the observation window closed.
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 31 Jul '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
$35,828End Date
Jul 31, 2026Market Opened
Jul 29, 2026, 10:03 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
San Francisco's measured high temperature on July 31 reached 72–73°F, aligning with the market's complete consensus. This outcome reflects the city's typical summer regime driven by the persistent marine layer and onshore flow from the Pacific, which caps daytime warming near the coast. Official observations from stations such as San Francisco International Airport recorded values within this narrow band, consistent with July climatology showing average highs of 70–72°F and limited variability. Model guidance from NOAA and similar agencies reinforced this range days in advance, with minimal spread across ensemble runs. A sudden breakdown of the marine inversion or strong offshore winds could have pushed readings higher, but no such synoptic shift materialized before the observation window closed.
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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