Official National Weather Service forecasts for downtown San Francisco show a high near 73°F on August 27 under partly cloudy skies, with a persistent marine layer and moderate onshore flow limiting afternoon warming. This keeps coastal readings below seasonal peaks despite broader Bay Area ridging, as stratus and southwest winds around 10-20 mph suppress temperatures in the immediate city. Nearby stations and models diverge slightly on clearing timing and exact peak, producing the tight clustering of market probabilities around 72-75°F. Historical August maxima average near 69-70°F, so current conditions reflect modest above-average potential tempered by the shallow marine influence. Updated model runs and evening forecast discussions will clarify whether stronger onshore flow or earlier clearing shifts the outcome.
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 27?
Highest temperature in San Francisco on August 27?
74-75°F 28%
72-73°F 26%
76-77°F 20%
70-71°F 17%
NEW
NEW
Aug 27, 2026
65°F or below
1%
66-67°F
2%
68-69°F
2%
70-71°F
17%
72-73°F
26%
74-75°F
28%
76-77°F
20%
78-79°F
7%
80-81°F
3%
82-83°F
1%
84°F or higher
<1%
74-75°F 28%
72-73°F 26%
76-77°F 20%
70-71°F 17%
NEW
NEW
Aug 27, 2026
65°F or below
$17 Vol.
1%
66-67°F
$131 Vol.
2%
68-69°F
$1,369 Vol.
2%
70-71°F
$89 Vol.
17%
72-73°F
$202 Vol.
26%
74-75°F
$375 Vol.
28%
76-77°F
$906 Vol.
20%
78-79°F
$163 Vol.
7%
80-81°F
$202 Vol.
3%
82-83°F
$80 Vol.
1%
84°F or higher
$43 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 27 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.Official National Weather Service forecasts for downtown San Francisco show a high near 73°F on August 27 under partly cloudy skies, with a persistent marine layer and moderate onshore flow limiting afternoon warming. This keeps coastal readings below seasonal peaks despite broader Bay Area ridging, as stratus and southwest winds around 10-20 mph suppress temperatures in the immediate city. Nearby stations and models diverge slightly on clearing timing and exact peak, producing the tight clustering of market probabilities around 72-75°F. Historical August maxima average near 69-70°F, so current conditions reflect modest above-average potential tempered by the shallow marine influence. Updated model runs and evening forecast discussions will clarify whether stronger onshore flow or earlier clearing shifts the outcome.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 27 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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 25, 2026, 8:57 PM ET
Volume
$3,577End Date
Aug 27, 2026Market Opened
Aug 25, 2026, 8:57 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 27 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.Official National Weather Service forecasts for downtown San Francisco show a high near 73°F on August 27 under partly cloudy skies, with a persistent marine layer and moderate onshore flow limiting afternoon warming. This keeps coastal readings below seasonal peaks despite broader Bay Area ridging, as stratus and southwest winds around 10-20 mph suppress temperatures in the immediate city. Nearby stations and models diverge slightly on clearing timing and exact peak, producing the tight clustering of market probabilities around 72-75°F. Historical August maxima average near 69-70°F, so current conditions reflect modest above-average potential tempered by the shallow marine influence. Updated model runs and evening forecast discussions will clarify whether stronger onshore flow or earlier clearing shifts the outcome.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 27 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.
Volume
$3,577End Date
Aug 27, 2026Market Opened
Aug 25, 2026, 8:57 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...Official National Weather Service forecasts for downtown San Francisco show a high near 73°F on August 27 under partly cloudy skies, with a persistent marine layer and moderate onshore flow limiting afternoon warming. This keeps coastal readings below seasonal peaks despite broader Bay Area ridging, as stratus and southwest winds around 10-20 mph suppress temperatures in the immediate city. Nearby stations and models diverge slightly on clearing timing and exact peak, producing the tight clustering of market probabilities around 72-75°F. Historical August maxima average near 69-70°F, so current conditions reflect modest above-average potential tempered by the shallow marine influence. Updated model runs and evening forecast discussions will clarify whether stronger onshore flow or earlier clearing shifts the outcome.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions