National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10.0ft.

Overcast

55°F

13°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Last update 02 Jan 03:00 AM PST
Extended Forecast for

San Francisco International Airport CA

Coastal Flood Advisory January 3, 02:00pm until January 4, 02:00pm
Coastal Flood Advisory January 2, 03:17am until January 2, 07:00am
Coastal Flood Warning January 2, 07:00am until January 3, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Coastal Flood Advisory
Coastal Flood Warning
  •  
    Coastal Flood Advisory January 2, 03:17am until January 2, 07:00am

    NOW until 7:00am Fri

    Coastal Flood Advisory

  • Overnight

    Low: 52 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly after 4pm. High near 61. Southeast wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance Rain
    then Rain

  • Friday Night

    Friday Night: Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 56. South southeast wind 15 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers

  • Saturday

    Saturday: Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm. High near 60. Windy, with a south wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers and
    Windy

  • Saturday Night

    Saturday Night: Rain before 7pm, then showers and possibly a thunderstorm after 7pm. Low around 54. Breezy, with a south wind 17 to 25 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 57. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Rain. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Rain

  • Monday

    Monday: Rain. Cloudy, with a high near 56.

    High: 56 °F

    Rain

Detailed Forecast

Overnight
A 40 percent chance of rain before 4am. Mostly cloudy, with a low around 52. Southeast wind around 9 mph.
Friday
Rain, mainly after 4pm. High near 61. Southeast wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 56. South southeast wind 15 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm. High near 60. Windy, with a south wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain before 7pm, then showers and possibly a thunderstorm after 7pm. Low around 54. Breezy, with a south wind 17 to 25 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Rain before 10am, then showers and possibly a thunderstorm after 10am. High near 57. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain. Low around 51. Chance of precipitation is 80%.
Monday
Rain. Cloudy, with a high near 56.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48.
Tuesday
A slight chance of rain before 10am. Partly sunny, with a high near 57.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Thursday
A chance of rain. Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Francisco International Airport CA
 37.62°N 122.37°W (Elev. 3 ft)
Last Update:
2:04 am PST Jan 2, 2026
Forecast Valid:
3am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation