Trader consensus on Polymarket has overwhelmingly priced the highest temperature in San Francisco on April 9 at 70-71°F (100% implied probability), driven by official observations from the San Francisco International Airport (KSFO) station, the authoritative measurement site per National Weather Service protocols. Automated weather sensors recorded a peak of 70 or 71°F amid persistent marine layer stratus clouds and cool onshore breezes from the Pacific, capping daytime heating consistent with NOAA model guidance and springtime climatology—April highs average 64-66°F historically, with fog often limiting peaks. This aligns with recent Bay Area patterns following March's record warmth, as upper-level troughing stabilized coastal conditions. Final resolution awaits NWS daily climate summary, but data revisions are exceedingly rare post-preliminary reporting; only a verified sensor malfunction or outlier quality control flag could realistically challenge it.
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 April 9?
Highest temperature in San Francisco on April 9?
70-71°F 100.0%
55°F or below <1%
56-57°F <1%
58-59°F <1%
$70,797 Vol.
$70,797 Vol.
Apr 9, 2026
55°F or below
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
Yes
72-73°F
No
74°F or higher
No
70-71°F 100.0%
55°F or below <1%
56-57°F <1%
58-59°F <1%
$70,797 Vol.
$70,797 Vol.
Apr 9, 2026
55°F or below
$4,399 Vol.
No
56-57°F
$11,236 Vol.
No
58-59°F
$2,251 Vol.
No
60-61°F
$2,389 Vol.
No
62-63°F
$3,599 Vol.
No
64-65°F
$5,082 Vol.
No
66-67°F
$5,764 Vol.
No
68-69°F
$9,020 Vol.
No
70-71°F
$11,237 Vol.
Yes
72-73°F
$9,695 Vol.
No
74°F or higher
$6,125 Vol.
No
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 9 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket has overwhelmingly priced the highest temperature in San Francisco on April 9 at 70-71°F (100% implied probability), driven by official observations from the San Francisco International Airport (KSFO) station, the authoritative measurement site per National Weather Service protocols. Automated weather sensors recorded a peak of 70 or 71°F amid persistent marine layer stratus clouds and cool onshore breezes from the Pacific, capping daytime heating consistent with NOAA model guidance and springtime climatology—April highs average 64-66°F historically, with fog often limiting peaks. This aligns with recent Bay Area patterns following March's record warmth, as upper-level troughing stabilized coastal conditions. Final resolution awaits NWS daily climate summary, but data revisions are exceedingly rare post-preliminary reporting; only a verified sensor malfunction or outlier quality control flag could realistically challenge it.
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 9 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 5, 2026, 12:10 AM ET
Volume
$70,797End Date
Apr 9, 2026Market Opened
Apr 5, 2026, 12:10 AM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 9 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket has overwhelmingly priced the highest temperature in San Francisco on April 9 at 70-71°F (100% implied probability), driven by official observations from the San Francisco International Airport (KSFO) station, the authoritative measurement site per National Weather Service protocols. Automated weather sensors recorded a peak of 70 or 71°F amid persistent marine layer stratus clouds and cool onshore breezes from the Pacific, capping daytime heating consistent with NOAA model guidance and springtime climatology—April highs average 64-66°F historically, with fog often limiting peaks. This aligns with recent Bay Area patterns following March's record warmth, as upper-level troughing stabilized coastal conditions. Final resolution awaits NWS daily climate summary, but data revisions are exceedingly rare post-preliminary reporting; only a verified sensor malfunction or outlier quality control flag could realistically challenge it.
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 9 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$70,797End Date
Apr 9, 2026Market Opened
Apr 5, 2026, 12:10 AM ETResolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has overwhelmingly priced the highest temperature in San Francisco on April 9 at 70-71°F (100% implied probability), driven by official observations from the San Francisco International Airport (KSFO) station, the authoritative measurement site per National Weather Service protocols. Automated weather sensors recorded a peak of 70 or 71°F amid persistent marine layer stratus clouds and cool onshore breezes from the Pacific, capping daytime heating consistent with NOAA model guidance and springtime climatology—April highs average 64-66°F historically, with fog often limiting peaks. This aligns with recent Bay Area patterns following March's record warmth, as upper-level troughing stabilized coastal conditions. Final resolution awaits NWS daily climate summary, but data revisions are exceedingly rare post-preliminary reporting; only a verified sensor malfunction or outlier quality control flag could realistically challenge it.
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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