Forecasts from the National Weather Service and other models indicate partly cloudy conditions with highs likely in the low-to-mid 70s for San Francisco on August 27, driven by a compressed marine layer and persistent onshore flow that limits warming despite a modest regional high-pressure influence. This setup favors the market's leading bins around 72-75°F while capping upside potential, consistent with typical late-August coastal climatology where afternoon maxima rarely exceed 75°F without strong offshore winds. Key variables include exact marine-layer depth, wind speeds, and any high-cloud impacts from distant tropical moisture, all of which introduce forecast spread and explain the dispersed probabilities across 70-77°F outcomes. Updated model runs and final observations on the day will resolve the market.
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?
72-73°F 32%
74-75°F 22%
70-71°F 22%
76-77°F 13%
65°F or below
1%
66-67°F
3%
68-69°F
1%
70-71°F
22%
72-73°F
32%
74-75°F
22%
76-77°F
13%
78-79°F
8%
80-81°F
4%
82-83°F
3%
84°F or higher
2%
72-73°F 32%
74-75°F 22%
70-71°F 22%
76-77°F 13%
65°F or below
1%
66-67°F
3%
68-69°F
1%
70-71°F
22%
72-73°F
32%
74-75°F
22%
76-77°F
13%
78-79°F
8%
80-81°F
4%
82-83°F
3%
84°F or higher
2%
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
Resolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=ksfoResolver
0x69c47De9D...Forecasts from the National Weather Service and other models indicate partly cloudy conditions with highs likely in the low-to-mid 70s for San Francisco on August 27, driven by a compressed marine layer and persistent onshore flow that limits warming despite a modest regional high-pressure influence. This setup favors the market's leading bins around 72-75°F while capping upside potential, consistent with typical late-August coastal climatology where afternoon maxima rarely exceed 75°F without strong offshore winds. Key variables include exact marine-layer depth, wind speeds, and any high-cloud impacts from distant tropical moisture, all of which introduce forecast spread and explain the dispersed probabilities across 70-77°F outcomes. Updated model runs and final observations on the day will resolve the market.
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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