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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

DW7094 Mill Valley (D7094)

Lat: 37.91333°NLon: 122.54833°WElev: 190.0ft.

NA

N/A

Humidity NA
Wind Speed NA NA MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

San Rafael CA

Flood Watch December 25, 02:11pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 25, 02:11pm until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Christmas Day

    High: 56 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 8pm, then showers likely. Some of the storms could be severe. Low around 50. South southwest wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 4pm. High near 55. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 54. North wind around 6 mph.

    High: 54 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Christmas Day
Showers and possibly a thunderstorm. Some of the storms could be severe. High near 56. South wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 8pm, then showers likely. Some of the storms could be severe. Low around 50. South southwest wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, with thunderstorms also possible after 4pm. High near 55. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 54. North wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Rafael CA
 37.98°N 122.52°W (Elev. 190 ft)
Last Update:
12:26 pm PST Dec 25, 2025
Forecast Valid:
2pm PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation