Recent forecasts from AccuWeather and other models indicate San Francisco highs near 70–73°F on August 3, consistent with typical August marine-layer cooling from persistent onshore flow and coastal fog. Trader sentiment clusters on 74–77°F outcomes because models show modest warming potential if the marine layer thins or weakens slightly, while stronger Pacific high pressure could suppress temperatures into the low 70s. Historical August averages hover around 68°F, but early-month patterns often feature brief inland heat spillover that nudges coastal readings a few degrees higher without triggering extreme events. Key variables include National Weather Service model runs on boundary-layer moisture and wind direction, with any last-minute shifts in the thermal trough likely to determine whether the peak settles in the mid- or upper-70s range.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in San Francisco on August 3?
76-77°F 30%
74-75°F 25%
78-79°F 20%
80-81°F 14%
69°F or below
2%
70-71°F
2%
72-73°F
12%
74-75°F
25%
76-77°F
30%
78-79°F
20%
80-81°F
14%
82-83°F
5%
84-85°F
1%
86-87°F
2%
88°F or higher
1%
76-77°F 30%
74-75°F 25%
78-79°F 20%
80-81°F 14%
69°F or below
2%
70-71°F
2%
72-73°F
12%
74-75°F
25%
76-77°F
30%
78-79°F
20%
80-81°F
14%
82-83°F
5%
84-85°F
1%
86-87°F
2%
88°F or higher
1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Aug 1, 2026, 9:04 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 for the San Francisco International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Recent forecasts from AccuWeather and other models indicate San Francisco highs near 70–73°F on August 3, consistent with typical August marine-layer cooling from persistent onshore flow and coastal fog. Trader sentiment clusters on 74–77°F outcomes because models show modest warming potential if the marine layer thins or weakens slightly, while stronger Pacific high pressure could suppress temperatures into the low 70s. Historical August averages hover around 68°F, but early-month patterns often feature brief inland heat spillover that nudges coastal readings a few degrees higher without triggering extreme events. Key variables include National Weather Service model runs on boundary-layer moisture and wind direction, with any last-minute shifts in the thermal trough likely to determine whether the peak settles in the mid- or upper-70s range.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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