Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.
A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >
Hazardous Weather Conditions
Current conditions at
SAN FRANCISCO DOWNTOWN (SFOC1)
Lat: 37.77056°NLon: 122.42694°WElev: 150.0ft.NA
48°F
9°C
| Humidity | 72% |
| Wind Speed | NA NA MPH |
| Barometer | NA |
| Dewpoint | 40°F (4°C) |
| Visibility | NA |
| Last update | 30 Dec 12:43 AM PST |
Extended Forecast for
3 Miles SW San Francisco CA
Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm
Overnight
Low: 44 °F
Mostly Clear
Tuesday
High: 55 °F
Partly Sunny
Tuesday Night
Low: 46 °F
Mostly Cloudy
then Chance
RainWednesday
High: 54 °F
Rain
Wednesday Night
Low: 48 °F
Rain
New Year's Day
High: 59 °F
Rain
Thursday Night
Low: 54 °F
Rain
Friday
High: 59 °F
Rain
Friday Night
Low: 49 °F
Rain
Detailed Forecast
Overnight
Mostly clear, with a steady temperature around 44. North northeast wind around 9 mph.
Tuesday
Partly sunny, with a high near 55. Northeast wind 9 to 11 mph.
Tuesday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 46. East northeast wind 8 to 10 mph.
Wednesday
Rain, mainly after 10am. High near 54. East northeast wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 48. East wind 8 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 59. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 54. Chance of precipitation is 90%.
Friday
Rain. Cloudy, with a high near 59.
Friday Night
Rain. Cloudy, with a low around 49.
Saturday
Rain likely. Mostly cloudy, with a high near 55.
Saturday Night
Rain likely. Mostly cloudy, with a low around 47.
Sunday
Rain likely. Mostly cloudy, with a high near 56.
Sunday Night
Rain likely. Mostly cloudy, with a low around 48.
Monday
Rain likely. Mostly cloudy, with a high near 56.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SW San Francisco CA
37.74°N 122.46°W (Elev. 610 ft)
37.74°N 122.46°W (Elev. 610 ft)
12:27 am PST Dec 30, 2025
1am PST Dec 30, 2025-6pm PST Jan 5, 2026
Additional Resources
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Hourly Weather Forecast
