Marine layer and persistent onshore flow from the Pacific are the dominant factors capping San Francisco highs near or slightly above seasonal normals around 70°F on July 29. Official NWS guidance and model consensus point to a gradual warming trend midweek behind an expanding ridge, yet strong afternoon sea breezes and possible morning stratus should limit inland heat intrusion into the city. Recent Bay Area heat episodes have largely spared the immediate coast, keeping the distribution centered on 68–73°F bins. Key variables include marine-layer depth, wind speed and direction, and any late-day clearing that could allow an extra degree or two; traders price the highest uncertainty around these thresholds given typical July variability and the one-day forecast horizon.
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 July 29?
Highest temperature in San Francisco on July 29?
70-71°F 38%
68-69°F 23%
72-73°F 19%
74-75°F 10%
NEW
NEW
Jul 29, 2026
61°F or below
1%
62-63°F
3%
64-65°F
4%
66-67°F
6%
68-69°F
23%
70-71°F
38%
72-73°F
19%
74-75°F
10%
76-77°F
5%
78-79°F
1%
80°F or higher
<1%
70-71°F 38%
68-69°F 23%
72-73°F 19%
74-75°F 10%
NEW
NEW
Jul 29, 2026
61°F or below
$225 Vol.
1%
62-63°F
$33 Vol.
3%
64-65°F
$36 Vol.
4%
66-67°F
$30 Vol.
6%
68-69°F
$35 Vol.
23%
70-71°F
$115 Vol.
38%
72-73°F
$54 Vol.
19%
74-75°F
$1 Vol.
10%
76-77°F
$41 Vol.
5%
78-79°F
$203 Vol.
1%
80°F or higher
$10 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 29 Jul '26.
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.Marine layer and persistent onshore flow from the Pacific are the dominant factors capping San Francisco highs near or slightly above seasonal normals around 70°F on July 29. Official NWS guidance and model consensus point to a gradual warming trend midweek behind an expanding ridge, yet strong afternoon sea breezes and possible morning stratus should limit inland heat intrusion into the city. Recent Bay Area heat episodes have largely spared the immediate coast, keeping the distribution centered on 68–73°F bins. Key variables include marine-layer depth, wind speed and direction, and any late-day clearing that could allow an extra degree or two; traders price the highest uncertainty around these thresholds given typical July variability and the one-day forecast horizon.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 29 Jul '26.
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.
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: Jul 27, 2026, 8:02 PM ET
Volume
$782End Date
Jul 29, 2026Market Opened
Jul 27, 2026, 8:02 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 29 Jul '26.
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.Marine layer and persistent onshore flow from the Pacific are the dominant factors capping San Francisco highs near or slightly above seasonal normals around 70°F on July 29. Official NWS guidance and model consensus point to a gradual warming trend midweek behind an expanding ridge, yet strong afternoon sea breezes and possible morning stratus should limit inland heat intrusion into the city. Recent Bay Area heat episodes have largely spared the immediate coast, keeping the distribution centered on 68–73°F bins. Key variables include marine-layer depth, wind speed and direction, and any late-day clearing that could allow an extra degree or two; traders price the highest uncertainty around these thresholds given typical July variability and the one-day forecast horizon.
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 29 Jul '26.
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.
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.
Volume
$782End Date
Jul 29, 2026Market Opened
Jul 27, 2026, 8:02 PM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Marine layer and persistent onshore flow from the Pacific are the dominant factors capping San Francisco highs near or slightly above seasonal normals around 70°F on July 29. Official NWS guidance and model consensus point to a gradual warming trend midweek behind an expanding ridge, yet strong afternoon sea breezes and possible morning stratus should limit inland heat intrusion into the city. Recent Bay Area heat episodes have largely spared the immediate coast, keeping the distribution centered on 68–73°F bins. Key variables include marine-layer depth, wind speed and direction, and any late-day clearing that could allow an extra degree or two; traders price the highest uncertainty around these thresholds given typical July variability and the one-day forecast horizon.
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