Trader consensus on Polymarket prices a tight cluster of outcomes around 68-72°F for San Francisco's (SFO) highest temperature on April 3, reflecting National Weather Service (NWS) forecast model ensembles showing highs in this range amid a persistent upper-level ridge over California. Recent developments include a dry, above-normal March with coastal highs nearing 80s°F as of March 30, driven by subsidence inversion limiting marine layer intrusion, though light onshore flow could deepen stratus overnight into April 3, potentially capping peaks at 68-69°F. GFS and ECMWF diverge slightly on ridge strength and diurnal clearing, with 5-10°F uncertainty from cloud cover and winds; historical April averages ~64°F provide baseline, but current pattern favors mild warming. Watch NWS updates and 12Z model runs for refinements ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on April 3?
Highest temperature in San Francisco on April 3?
70-71°F 26%
72°F or higher 26%
68-69°F 24%
66-67°F 18%
53°F or below
1%
54-55°F
1%
56-57°F
5%
58-59°F
10%
60-61°F
9%
62-63°F
13%
64-65°F
16%
66-67°F
18%
68-69°F
24%
70-71°F
26%
72°F or higher
26%
70-71°F 26%
72°F or higher 26%
68-69°F 24%
66-67°F 18%
53°F or below
1%
54-55°F
1%
56-57°F
5%
58-59°F
10%
60-61°F
9%
62-63°F
13%
64-65°F
16%
66-67°F
18%
68-69°F
24%
70-71°F
26%
72°F or higher
26%
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, 3:35 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 cluster of outcomes around 68-72°F for San Francisco's (SFO) highest temperature on April 3, reflecting National Weather Service (NWS) forecast model ensembles showing highs in this range amid a persistent upper-level ridge over California. Recent developments include a dry, above-normal March with coastal highs nearing 80s°F as of March 30, driven by subsidence inversion limiting marine layer intrusion, though light onshore flow could deepen stratus overnight into April 3, potentially capping peaks at 68-69°F. GFS and ECMWF diverge slightly on ridge strength and diurnal clearing, with 5-10°F uncertainty from cloud cover and winds; historical April averages ~64°F provide baseline, but current pattern favors mild warming. Watch NWS updates and 12Z model runs for refinements ahead of resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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