Latest National Weather Service forecasts and ensemble model consensus from GFS and ECMWF position trader sentiment toward a high of 68°F or higher in San Francisco on April 18, with 63% implied probability, driven by a building high-pressure ridge over California promoting sunnier skies and above-normal temperatures after recent cooler days around 62°F on April 13. Upper-level warming and reduced marine layer influence from lighter onshore winds support intensification potential into the upper 60s, aligning with April climatology where daily highs average 64–66°F but frequently exceed 68°F under ridge dominance. Lower outcomes like 64–65°F (9%) reflect uncertainty in persistent coastal fog, with new model runs expected overnight potentially refining probabilities ahead of resolution.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoHighest temperature in San Francisco on April 18?
Highest temperature in San Francisco on April 18?
68°F or higher 63%
66-67°F 26%
64-65°F 10%
60-61°F 3.6%
49°F or below
1%
50-51°F
1%
52-53°F
1%
54-55°F
<1%
56-57°F
1%
58-59°F
1%
60-61°F
4%
62-63°F
3%
64-65°F
10%
66-67°F
26%
68°F or higher
63%
68°F or higher 63%
66-67°F 26%
64-65°F 10%
60-61°F 3.6%
49°F or below
1%
50-51°F
1%
52-53°F
1%
54-55°F
<1%
56-57°F
1%
58-59°F
1%
60-61°F
4%
62-63°F
3%
64-65°F
10%
66-67°F
26%
68°F or higher
63%
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.
Mercado Aberto: Apr 16, 2026, 12:27 AM ET
Fonte de resolução
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...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 de resolução
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Latest National Weather Service forecasts and ensemble model consensus from GFS and ECMWF position trader sentiment toward a high of 68°F or higher in San Francisco on April 18, with 63% implied probability, driven by a building high-pressure ridge over California promoting sunnier skies and above-normal temperatures after recent cooler days around 62°F on April 13. Upper-level warming and reduced marine layer influence from lighter onshore winds support intensification potential into the upper 60s, aligning with April climatology where daily highs average 64–66°F but frequently exceed 68°F under ridge dominance. Lower outcomes like 64–65°F (9%) reflect uncertainty in persistent coastal fog, with new model runs expected overnight potentially refining probabilities ahead of resolution.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
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