Trader consensus on Polymarket tilts toward mild highs of 70-73°F for San Francisco on March 26, driven by the latest NOAA GFS and ECMWF ensemble forecasts projecting a building upper-level ridge over California, boosting daytime heating under partly cloudy skies. These models show peak temperatures clustering around 71°F at SFO airport— the market's resolution source—with 20.5% odds on 72-73°F edging out 70-71°F at 19.5% due to slightly warmer 12z runs emphasizing stronger subsidence and reduced marine layer intrusion. Cooler 66-67°F odds (19%) reflect ensemble spread from persistent coastal stratus, a common March differentiator validated by historical NWS data showing 2-5°F diurnal variability from fog burn-off timing. NWS point forecast updates by March 25 will sharpen resolution amid low model divergence.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on March 26?
Highest temperature in San Francisco on March 26?
72-73°F 21%
70-71°F 20%
66-67°F 19%
68-69°F 19%
55°F or below
2%
56-57°F
2%
58-59°F
9%
60-61°F
2%
62-63°F
2%
64-65°F
10%
66-67°F
19%
68-69°F
19%
70-71°F
20%
72-73°F
21%
74°F or higher
12%
72-73°F 21%
70-71°F 20%
66-67°F 19%
68-69°F 19%
55°F or below
2%
56-57°F
2%
58-59°F
9%
60-61°F
2%
62-63°F
2%
64-65°F
10%
66-67°F
19%
68-69°F
19%
70-71°F
20%
72-73°F
21%
74°F or higher
12%
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 tilts toward mild highs of 70-73°F for San Francisco on March 26, driven by the latest NOAA GFS and ECMWF ensemble forecasts projecting a building upper-level ridge over California, boosting daytime heating under partly cloudy skies. These models show peak temperatures clustering around 71°F at SFO airport— the market's resolution source—with 20.5% odds on 72-73°F edging out 70-71°F at 19.5% due to slightly warmer 12z runs emphasizing stronger subsidence and reduced marine layer intrusion. Cooler 66-67°F odds (19%) reflect ensemble spread from persistent coastal stratus, a common March differentiator validated by historical NWS data showing 2-5°F diurnal variability from fog burn-off timing. NWS point forecast updates by March 25 will sharpen resolution amid low model divergence.
Experimental AI-generated summary referencing Polymarket data · Updated
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