Trader consensus on Polymarket reflects tight forecast model agreement for San Francisco's March 26 high temperature, with NOAA and ensemble guidance centering 68-73°F amid a persistent marine layer and low-level temperature inversion capping coastal warming. Recent GFS and ECMWF updates show slight divergences: stronger onshore flow in some runs favors 68-69°F by delaying stratus clearing, while ridge amplification aloft boosts diurnal heating toward 72-73°F in others. March climatology averages 62°F highs, but this week's high-pressure build has nudged recent days into the upper 60s, driving the clustered implied probabilities. New 12z model runs expected soon could refine dissipation timing, a key differentiator.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on March 26?
Highest temperature in San Francisco on March 26?
68-69°F 27%
70-71°F 26%
72-73°F 21%
74°F or higher 16%
$11,028 Vol.
$11,028 Vol.
55°F or below
<1%
56-57°F
<1%
58-59°F
1%
60-61°F
<1%
62-63°F
1%
64-65°F
5%
66-67°F
7%
68-69°F
27%
70-71°F
26%
72-73°F
21%
74°F or higher
16%
68-69°F 27%
70-71°F 26%
72-73°F 21%
74°F or higher 16%
$11,028 Vol.
$11,028 Vol.
55°F or below
<1%
56-57°F
<1%
58-59°F
1%
60-61°F
<1%
62-63°F
1%
64-65°F
5%
66-67°F
7%
68-69°F
27%
70-71°F
26%
72-73°F
21%
74°F or higher
16%
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 22, 2026, 6:12 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Trader consensus on Polymarket reflects tight forecast model agreement for San Francisco's March 26 high temperature, with NOAA and ensemble guidance centering 68-73°F amid a persistent marine layer and low-level temperature inversion capping coastal warming. Recent GFS and ECMWF updates show slight divergences: stronger onshore flow in some runs favors 68-69°F by delaying stratus clearing, while ridge amplification aloft boosts diurnal heating toward 72-73°F in others. March climatology averages 62°F highs, but this week's high-pressure build has nudged recent days into the upper 60s, driving the clustered implied probabilities. New 12z model runs expected soon could refine dissipation timing, a key differentiator.
Experimental AI-generated summary referencing Polymarket data · Updated
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