An Extreme Cold Warning was issued for parts of the San Francisco Bay Area, California, including interior Monterey County, San Benito County, and the eastern Santa Clara Hills. The warning will be in effect from 01:00 to 09:00 PST on January 9, 2026. Temperatures are forecast to drop below freezing, posing hazards to unhoused populations, livestock, and sensitive crops.
Downtown San Francisco reached only 10°C (50°F) on Sunday, November 30, 2025 – the city’s lowest daily maximum for the date in records dating back to 1874. The unseasonably cold conditions developed under a persistent marine layer and stagnant air pattern, keeping the city unusually cold for late autumn.
Tornado warnings were issued across parts of Central California, including San Luis Obispo County, as a rare October storm brought heavy rainfall, gusts exceeding 110 km/h (70 mph), and localized flooding on October 13–14, 2025. Evacuation warnings were declared in Los Angeles County for burn-scar areas at risk of debris flows, while forecasters maintained a marginal tornado risk for southern coastal regions.
Two atmospheric rivers have battered the U.S. West Coast since January 31, 2025, bringing record rainfall to San Francisco and triggering landslides and flooding across California. At least one person was hospitalized.
San Francisco experienced its first-ever Tornado Warning on Saturday morning, December 14, 2024, issued as a powerful storm system swept through the region with heavy rain and strong winds.
A Red Flag Warning has been issued for the Bay Area in San Fransisco on Monday, November 4, 2024, due to a decrease in humidity and fire weather conditions.
The National Weather Service (NWS) issued a red flag warning for the Bay Area due to fire weather from 11 pm (6 am UTC) Thursday, October 17, 2024 to 5 pm (12 am UTC) Saturday, October 19, 2024.
More than 100 000 customers of Pacific Gas and Electric (PG&E) in the Bay Area of San Francisco remained without power on Tuesday night, February 21, 2023, due to the strong winds that whipped the region.
Controversial research argues that quakes made a one-two punch off the United States' west coast at least eight times in the past 3 000 years. For instance, the quake that hit Cascadia fault off the northern California coast triggered a second tremor on the San…
San Francisco registered 8.8 °C (48 °F) on Thursday, November 28, 2019, and tied with November 27, 1896, for the coldest November day on record. Meanwhile, North Bay dealt with below-freezing temperatures overnight, with Novato Airport hitting -5 °C (23…
