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.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · AggiornatoLa temperatura più alta a San Francisco il 21 maggio?
68-69°F 100.0%
57°F o inferiore <1%
58-59°F <1%
60-61°F <1%
$53,238 Vol.
$53,238 Vol.
57°F o inferiore
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Sì
21-22°C
No
72-73°F
No
74-75°F
No
76°F o superiore
No
68-69°F 100.0%
57°F o inferiore <1%
58-59°F <1%
60-61°F <1%
$53,238 Vol.
$53,238 Vol.
57°F o inferiore
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Sì
21-22°C
No
72-73°F
No
74-75°F
No
76°F o superiore
No
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.
Mercato aperto: May 19, 2026, 12:07 AM ET
Fonte di risoluzione
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Esito proposto: No
Nessuna contestazione
Esito finale: No
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.
Fonte di risoluzione
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Esito proposto: No
Nessuna contestazione
Esito finale: No
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.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · Aggiornato

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