National Weather Service observations at San Francisco International Airport and downtown stations recorded a daily maximum of 68–69 °F on May 21, locking in the market-implied outcome. Persistent marine-layer stratus and a moderate onshore flow suppressed solar heating despite mostly sunny skies, keeping temperatures near the seasonal average of 65–67 °F. Light west-southwest winds and the typical afternoon sea breeze further capped any inland warming, consistent with long-term climatology for late-May coastal conditions. Only a significant delay in the marine layer or an anomalous offshore flow could have pushed readings into the low 70s, scenarios not supported by the day’s official data or model guidance.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · AktualisiertHöchste Temperatur in San Francisco am 21. Mai?
20-21°C 100.0%
57°F oder niedriger <1%
58-59°F <1%
60-61°F <1%
$53,238 Vol.
$53,238 Vol.
57°F oder niedriger
Nein
58-59°F
Nein
60-61°F
Nein
62-63°F
Nein
64-65°F
Nein
66-67°F
Nein
20-21°C
Ja
70-71°F
Nein
72-73°F
Nein
74-75°F
Nein
76°F oder höher
Nein
20-21°C 100.0%
57°F oder niedriger <1%
58-59°F <1%
60-61°F <1%
$53,238 Vol.
$53,238 Vol.
57°F oder niedriger
Nein
58-59°F
Nein
60-61°F
Nein
62-63°F
Nein
64-65°F
Nein
66-67°F
Nein
20-21°C
Ja
70-71°F
Nein
72-73°F
Nein
74-75°F
Nein
76°F oder höher
Nein
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.
Markt eröffnet: May 19, 2026, 12:07 AM ET
Abwicklungsquelle
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Vorgeschlagenes Ergebnis: Nein
Kein Einspruch
Endgültiges Ergebnis: Nein
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.
Abwicklungsquelle
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Vorgeschlagenes Ergebnis: Nein
Kein Einspruch
Endgültiges Ergebnis: Nein
National Weather Service observations at San Francisco International Airport and downtown stations recorded a daily maximum of 68–69 °F on May 21, locking in the market-implied outcome. Persistent marine-layer stratus and a moderate onshore flow suppressed solar heating despite mostly sunny skies, keeping temperatures near the seasonal average of 65–67 °F. Light west-southwest winds and the typical afternoon sea breeze further capped any inland warming, consistent with long-term climatology for late-May coastal conditions. Only a significant delay in the marine layer or an anomalous offshore flow could have pushed readings into the low 70s, scenarios not supported by the day’s official data or model guidance.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert

Vorsicht bei externen Links.
Vorsicht bei externen Links.
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