Recent National Weather Service forecasts for San Francisco on March 25 point to a high-pressure ridge offshore as the key driver pushing market-implied odds toward 70°F or higher at 31%, edging out clustered mid-to-upper 60s outcomes around 20-21% each. Ensemble models like GFS and ECMWF project highs of 68-72°F if morning marine layer clears by midday, allowing solar heating, but persistent coastal stratus could cap temperatures at 64-67°F, differentiating the leaders. Historical March averages hover near 63°F at SFO, with current trader consensus reflecting low-confidence runs amid diurnal fog variability and light onshore flow; watch afternoon updates for burn-off trends.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on March 25?
Highest temperature in San Francisco on March 25?
70°F or higher 37%
68-69°F 22%
64-65°F 21%
66-67°F 21%
$15,508 Vol.
$15,508 Vol.
58-59°F
1%
60-61°F
3%
62-63°F
8%
64-65°F
21%
66-67°F
21%
68-69°F
22%
70°F or higher
31%
70°F or higher 37%
68-69°F 22%
64-65°F 21%
66-67°F 21%
$15,508 Vol.
$15,508 Vol.
58-59°F
1%
60-61°F
3%
62-63°F
8%
64-65°F
21%
66-67°F
21%
68-69°F
22%
70°F or higher
31%
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: Mar 21, 2026, 6:24 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Recent National Weather Service forecasts for San Francisco on March 25 point to a high-pressure ridge offshore as the key driver pushing market-implied odds toward 70°F or higher at 31%, edging out clustered mid-to-upper 60s outcomes around 20-21% each. Ensemble models like GFS and ECMWF project highs of 68-72°F if morning marine layer clears by midday, allowing solar heating, but persistent coastal stratus could cap temperatures at 64-67°F, differentiating the leaders. Historical March averages hover near 63°F at SFO, with current trader consensus reflecting low-confidence runs amid diurnal fog variability and light onshore flow; watch afternoon updates for burn-off trends.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions