National Weather Service forecasts for San Francisco indicate a high near 71°F on March 29 under clear skies with light onshore winds moderating temperatures, yet trader consensus on Polymarket tilts toward warmer outcomes, pricing 76°F or higher at 44.5% implied probability amid uncertainty in model ensembles like GFS and ECMWF that show upside potential if winds slacken and the marine layer dissipates early. This reflects lingering effects from an extraordinary mid-March heat wave, where downtown San Francisco shattered its all-time March record at 90°F on March 20 and the airport hit 89°F, driven by a persistent upper-level ridge and subsidence. Historical March 29 highs average 62°F with a record of 81°F (2018), underscoring the rarity of 70s but feasibility under high-pressure dominance; watch the NWS Bay Area evening forecast discussion for refined guidance on wind shear and boundary layer mixing that could tip probabilities.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in San Francisco on March 29?
Highest temperature in San Francisco on March 29?
76°F or higher 49%
74-75°F 22%
72-73°F 19%
70-71°F 6%
$19,799 Vol.
$19,799 Vol.
57°F or below
<1%
58-59°F
<1%
60-61°F
1%
62-63°F
1%
64-65°F
1%
66-67°F
3%
68-69°F
2%
70-71°F
6%
72-73°F
19%
74-75°F
22%
76°F or higher
49%
76°F or higher 49%
74-75°F 22%
72-73°F 19%
70-71°F 6%
$19,799 Vol.
$19,799 Vol.
57°F or below
<1%
58-59°F
<1%
60-61°F
1%
62-63°F
1%
64-65°F
1%
66-67°F
3%
68-69°F
2%
70-71°F
6%
72-73°F
19%
74-75°F
22%
76°F or higher
49%
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: Mar 25, 2026, 6:25 AM ET
Resolution Source
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.
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...National Weather Service forecasts for San Francisco indicate a high near 71°F on March 29 under clear skies with light onshore winds moderating temperatures, yet trader consensus on Polymarket tilts toward warmer outcomes, pricing 76°F or higher at 44.5% implied probability amid uncertainty in model ensembles like GFS and ECMWF that show upside potential if winds slacken and the marine layer dissipates early. This reflects lingering effects from an extraordinary mid-March heat wave, where downtown San Francisco shattered its all-time March record at 90°F on March 20 and the airport hit 89°F, driven by a persistent upper-level ridge and subsidence. Historical March 29 highs average 62°F with a record of 81°F (2018), underscoring the rarity of 70s but feasibility under high-pressure dominance; watch the NWS Bay Area evening forecast discussion for refined guidance on wind shear and boundary layer mixing that could tip probabilities.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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