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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

heavy rain,mist

57°F

14°C

Humidity 93%
Wind Speed SSE 19 MPH
Barometer 29.48 in (998.31 mb)
Dewpoint 55°F (13°C)
Visibility 3.00 mi
Last update 24 Dec 12:53 AM PST
Extended Forecast for

Santa Rosa CASimilar City Names

Flood Watch December 24, 01:07am until December 26, 10:00pm
Wind Advisory until December 24, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 01:07am until December 26, 10:00pm
    Wind Advisory until December 24, 04:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 50 °F

    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe. Patchy fog between 10am and 1pm. High near 56. South southwest wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 53. South southeast wind 15 to 20 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Severe
    Thunderstorms

  • Christmas Day

    Christmas Day: Showers likely and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. High near 52. South wind 11 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could be severe. Patchy fog after 1am. Low around 46. South southwest wind 7 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Severe
    Thunderstorms
    then Showers
    and Patchy
    Fog

  • Friday

    Friday: Showers, with thunderstorms also possible after 10am. Patchy fog. High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely and
    Areas Fog

  • Saturday

    Saturday: A slight chance of showers before 10am. Areas of fog before 1pm. Otherwise, partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Showers and
    Areas Fog
    then Patchy
    Fog

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 50. Breezy, with a south wind around 23 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe. Patchy fog between 10am and 1pm. High near 56. South southwest wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 53. South southeast wind 15 to 20 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Christmas Day
Showers likely and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. High near 52. South wind 11 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could be severe. Patchy fog after 1am. Low around 46. South southwest wind 7 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, with thunderstorms also possible after 10am. Patchy fog. High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Saturday
A slight chance of showers before 10am. Areas of fog before 1pm. Otherwise, partly sunny, with a high near 53.
Saturday Night
Patchy fog. Patchy frost after 4am. Otherwise, mostly clear, with a low around 36.
Sunday
Patchy fog before 9am. Patchy frost before 8am. Otherwise, mostly sunny, with a high near 54.
Sunday Night
Patchy fog. Patchy frost. Otherwise, mostly clear, with a low around 36.
Monday
Patchy fog. Patchy frost. Otherwise, sunny, with a high near 56.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 38.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa CASimilar City Names
 38.45°N 122.7°W (Elev. 190 ft)
Last Update:
12:27 am PST Dec 24, 2025
Forecast Valid:
1am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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