Trader consensus on Polymarket reflects tight uncertainty in forecast models for San Francisco's high temperature on March 27, with NOAA's GFS and ECMWF ensembles centering around 74-79°F amid a strengthening high-pressure ridge over the West Coast. Recent 12- and 18Z model runs yesterday showed improved agreement on warm air advection and afternoon marine layer burn-off, favoring 74-75°F (30.5%) slightly over 78-79°F (26.6%) and 76-77°F (26.0%) due to lingering coastal stratus risks capping peaks. Climatological March averages hover near 62°F, but analogs from similar ridge setups in 2015 and 2022 suggest potential for upper-70s spikes. Watch today's 00Z updates and morning observations for resolution-defining clarity on cloud cover and wind speeds.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on March 27?
Highest temperature in San Francisco on March 27?
74-75°F 31%
76-77°F 26%
78-79°F 25.7%
72-73°F 11%
$25,801 Vol.
$25,801 Vol.
63°F or below
1%
64-65°F
1%
66-67°F
1%
68-69°F
2%
70-71°F
3%
72-73°F
11%
74-75°F
31%
76-77°F
26%
78-79°F
26%
80-81°F
2%
82°F or higher
1%
74-75°F 31%
76-77°F 26%
78-79°F 25.7%
72-73°F 11%
$25,801 Vol.
$25,801 Vol.
63°F or below
1%
64-65°F
1%
66-67°F
1%
68-69°F
2%
70-71°F
3%
72-73°F
11%
74-75°F
31%
76-77°F
26%
78-79°F
26%
80-81°F
2%
82°F or higher
1%
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 23, 2026, 6:17 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...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...Trader consensus on Polymarket reflects tight uncertainty in forecast models for San Francisco's high temperature on March 27, with NOAA's GFS and ECMWF ensembles centering around 74-79°F amid a strengthening high-pressure ridge over the West Coast. Recent 12- and 18Z model runs yesterday showed improved agreement on warm air advection and afternoon marine layer burn-off, favoring 74-75°F (30.5%) slightly over 78-79°F (26.6%) and 76-77°F (26.0%) due to lingering coastal stratus risks capping peaks. Climatological March averages hover near 62°F, but analogs from similar ridge setups in 2015 and 2022 suggest potential for upper-70s spikes. Watch today's 00Z updates and morning observations for resolution-defining clarity on cloud cover and wind speeds.
Experimental AI-generated summary referencing Polymarket data · Updated
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