Trader consensus on Polymarket reflects high uncertainty in forecast models for San Francisco's highest temperature on April 4, with implied odds split between a warm outlier at 78°F or higher (37.5%) and suppressed highs of 59°F or below (33.0%), diverging from April climatological norms of 64–66°F highs. This bimodal sentiment stems from recent March 2026 record warmth—peaking at 90°F—driven by a persistent upper-level ridge promoting subsidence and offshore winds that erode the marine layer; however, ensemble runs from GFS and ECMWF show divergence, with some members projecting ridge breakdown and strengthened onshore flow trapping cool coastal stratus, capping temperatures. Key differentiators include ridge amplitude at 500 mb and sea breeze intensity, with daily model updates through April 1 expected to clarify the outlook.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jourHighest temperature in San Francisco on April 4?
Highest temperature in San Francisco on April 4?
78°F or higher 35%
59°F or below 31%
74-75°F 25%
76-77°F 24%
59°F or below
31%
60-61°F
7%
62-63°F
9%
64-65°F
16%
66-67°F
16%
68-69°F
16%
70-71°F
17%
72-73°F
17%
74-75°F
25%
76-77°F
24%
78°F or higher
35%
78°F or higher 35%
59°F or below 31%
74-75°F 25%
76-77°F 24%
59°F or below
31%
60-61°F
7%
62-63°F
9%
64-65°F
16%
66-67°F
16%
68-69°F
16%
70-71°F
17%
72-73°F
17%
74-75°F
25%
76-77°F
24%
78°F or higher
35%
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.
Marché ouvert : Mar 29, 2026, 2:44 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 reflects high uncertainty in forecast models for San Francisco's highest temperature on April 4, with implied odds split between a warm outlier at 78°F or higher (37.5%) and suppressed highs of 59°F or below (33.0%), diverging from April climatological norms of 64–66°F highs. This bimodal sentiment stems from recent March 2026 record warmth—peaking at 90°F—driven by a persistent upper-level ridge promoting subsidence and offshore winds that erode the marine layer; however, ensemble runs from GFS and ECMWF show divergence, with some members projecting ridge breakdown and strengthened onshore flow trapping cool coastal stratus, capping temperatures. Key differentiators include ridge amplitude at 500 mb and sea breeze intensity, with daily model updates through April 1 expected to clarify the outlook.
Résumé expérimental généré par IA à partir des données Polymarket · Mis à jour
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