Trader consensus on Polymarket reflects deep uncertainty in ensemble forecasts for San Francisco's highest temperature on April 4, with market-implied odds splitting nearly evenly at 40.5% for 59°F or below versus 78°F or higher, diverging from the National Weather Service's operational forecast of 72°F under sunny skies. This bimodal sentiment stems from model spread in NOAA's GFS and ECMWF ensembles: cooler outcomes hinge on persistent marine layer stratus suppressing daytime heating amid weak onshore flow post-midweek rain, while hotter scenarios depend on stronger upper-level subsidence and offshore winds eroding clouds for rapid warming. Historical April highs average 64°F with notable variability from coastal microclimates; daily 00Z/12Z model updates through April 3 will clarify steering patterns and boundary layer evolution critical to resolution.
Resumen experimental generado por IA con datos de Polymarket · ActualizadoHighest temperature in San Francisco on April 4?
Highest temperature in San Francisco on April 4?
59°F or below 41%
78°F or higher 40%
74-75°F 26%
76-77°F 25%
59°F or below
41%
60-61°F
9%
62-63°F
17%
64-65°F
17%
66-67°F
17%
68-69°F
17%
70-71°F
17%
72-73°F
17%
74-75°F
26%
76-77°F
25%
78°F or higher
40%
59°F or below 41%
78°F or higher 40%
74-75°F 26%
76-77°F 25%
59°F or below
41%
60-61°F
9%
62-63°F
17%
64-65°F
17%
66-67°F
17%
68-69°F
17%
70-71°F
17%
72-73°F
17%
74-75°F
26%
76-77°F
25%
78°F or higher
40%
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.
Mercado abierto: 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 deep uncertainty in ensemble forecasts for San Francisco's highest temperature on April 4, with market-implied odds splitting nearly evenly at 40.5% for 59°F or below versus 78°F or higher, diverging from the National Weather Service's operational forecast of 72°F under sunny skies. This bimodal sentiment stems from model spread in NOAA's GFS and ECMWF ensembles: cooler outcomes hinge on persistent marine layer stratus suppressing daytime heating amid weak onshore flow post-midweek rain, while hotter scenarios depend on stronger upper-level subsidence and offshore winds eroding clouds for rapid warming. Historical April highs average 64°F with notable variability from coastal microclimates; daily 00Z/12Z model updates through April 3 will clarify steering patterns and boundary layer evolution critical to resolution.
Resumen experimental generado por IA con datos de Polymarket · Actualizado
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