Official observations from the San Francisco International Airport station (KSFO), the market's resolution source via Weather Underground, recorded a maximum temperature of 70°F at 1:56 PM PDT on April 8, 2026, under partly cloudy skies with west-northwest winds gusting to 20 mph and no precipitation. This aligns with typical spring marine layer persistence, capping highs amid weak high-pressure influence and cool Pacific waters near 52°F, slightly above the 1991–2020 April average of 65°F. Trader consensus at 100% implied probability for 70–71°F reflects this verified ASOS data from NOAA-affiliated monitoring, with negligible risk of revision barring instrument errors or post-audit discrepancies reported by the National Weather Service.
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 April 8?
Highest temperature in San Francisco on April 8?
70-71°F 100.0%
55°F or below <1%
56-57°F <1%
58-59°F <1%
$61,561 Vol.
$61,561 Vol.
55°F or below
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
Yes
72-73°F
No
74°F or higher
No
70-71°F 100.0%
55°F or below <1%
56-57°F <1%
58-59°F <1%
$61,561 Vol.
$61,561 Vol.
55°F or below
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
Yes
72-73°F
No
74°F or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 4, 2026, 12:10 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the San Francisco International Airport station (KSFO), the market's resolution source via Weather Underground, recorded a maximum temperature of 70°F at 1:56 PM PDT on April 8, 2026, under partly cloudy skies with west-northwest winds gusting to 20 mph and no precipitation. This aligns with typical spring marine layer persistence, capping highs amid weak high-pressure influence and cool Pacific waters near 52°F, slightly above the 1991–2020 April average of 65°F. Trader consensus at 100% implied probability for 70–71°F reflects this verified ASOS data from NOAA-affiliated monitoring, with negligible risk of revision barring instrument errors or post-audit discrepancies reported by the National Weather Service.
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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