Persistent marine layer stratus and onshore flow from the Pacific are anchoring San Francisco’s daily minimum near 57–58 °F on August 21, 2026. National Weather Service forecasts explicitly call for an overnight low around 58 °F under mostly cloudy skies, consistent with August climatology that places the average low at 57 °F and rarely below 54 °F. A deepening marine layer overnight, combined with light west-southwest winds of 7–14 mph, limits radiational cooling while suppressing any warmer offshore influence. Recent model runs show no significant shift in this pattern, keeping the 56–59 °F range the clear market consensus while rendering sub-54 °F or 60 °F+ outcomes statistically remote.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in San Francisco on August 21?
58-59°F 75%
56-57°F 34%
54-55°F 33%
52-53°F 31%
$4,074 Vol.
$4,074 Vol.
49°F or below
<1%
50-51°F
<1%
52-53°F
31%
54-55°F
33%
56-57°F
34%
58-59°F
83%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66-67°F
<1%
68°F or higher
<1%
58-59°F 75%
56-57°F 34%
54-55°F 33%
52-53°F 31%
$4,074 Vol.
$4,074 Vol.
49°F or below
<1%
50-51°F
<1%
52-53°F
31%
54-55°F
33%
56-57°F
34%
58-59°F
83%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66-67°F
<1%
68°F or higher
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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.
Binuksan ang Market: Aug 20, 2026, 1:30 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 21 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the lowest 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...Persistent marine layer stratus and onshore flow from the Pacific are anchoring San Francisco’s daily minimum near 57–58 °F on August 21, 2026. National Weather Service forecasts explicitly call for an overnight low around 58 °F under mostly cloudy skies, consistent with August climatology that places the average low at 57 °F and rarely below 54 °F. A deepening marine layer overnight, combined with light west-southwest winds of 7–14 mph, limits radiational cooling while suppressing any warmer offshore influence. Recent model runs show no significant shift in this pattern, keeping the 56–59 °F range the clear market consensus while rendering sub-54 °F or 60 °F+ outcomes statistically remote.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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