Trader consensus on Polymarket prices a tight race among 58-63°F outcomes for San Francisco's highest temperature on April 2, reflecting National Weather Service forecasts clustering around the low 60s amid persistent onshore flow and marine layer stratus suppressing coastal highs. Following an extraordinary March heatwave that shattered records with 90°F in San Francisco—the first ever for the month—a cooldown has taken hold since March 20, with the marine layer reforming as high pressure flattens. Differentiating factors include stratus cloud depth and burn-off timing: deeper coverage favors 58-59°F, while earlier clearing or lighter winds could push toward 62-63°F or even 66°F+. New GFS and ECMWF model runs expected daily will refine these uncertainties against climatological early-April norms of 62-64°F highs.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on April 2?
Highest temperature in San Francisco on April 2?
62-63°F 26%
58-59°F 25%
60-61°F 25%
66°F or higher 22%
47°F or below
3%
48-49°F
1%
50-51°F
1%
52-53°F
14%
54-55°F
8%
56-57°F
10%
58-59°F
25%
60-61°F
25%
62-63°F
26%
64-65°F
19%
66°F or higher
22%
62-63°F 26%
58-59°F 25%
60-61°F 25%
66°F or higher 22%
47°F or below
3%
48-49°F
1%
50-51°F
1%
52-53°F
14%
54-55°F
8%
56-57°F
10%
58-59°F
25%
60-61°F
25%
62-63°F
26%
64-65°F
19%
66°F or higher
22%
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 29, 2026, 3:21 PM 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 prices a tight race among 58-63°F outcomes for San Francisco's highest temperature on April 2, reflecting National Weather Service forecasts clustering around the low 60s amid persistent onshore flow and marine layer stratus suppressing coastal highs. Following an extraordinary March heatwave that shattered records with 90°F in San Francisco—the first ever for the month—a cooldown has taken hold since March 20, with the marine layer reforming as high pressure flattens. Differentiating factors include stratus cloud depth and burn-off timing: deeper coverage favors 58-59°F, while earlier clearing or lighter winds could push toward 62-63°F or even 66°F+. New GFS and ECMWF model runs expected daily will refine these uncertainties against climatological early-April norms of 62-64°F highs.
Experimental AI-generated summary referencing Polymarket data · Updated
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