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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mostly Cloudy

61°F

16°C

Humidity 51%
Wind Speed W 14 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 21 Apr 04:53 PM PDT
Extended Forecast for

Santa Rosa CA

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 58. West southwest wind around 6 mph.

    High: 58 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 44. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers before 8am, then a slight chance of showers after 11am. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 42. West southwest wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 9am. Otherwise, sunny, with a high near 72. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 72 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 71.

    High: 71 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 65.

    High: 65 °F

    Areas Fog
    then Partly
    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 58. West southwest wind around 6 mph.
Tonight
A chance of showers and thunderstorms, then showers likely after 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 44. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 8am, then a slight chance of showers after 11am. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 42. West southwest wind around 5 mph becoming calm in the evening.
Thursday
Areas of fog before 9am. Otherwise, sunny, with a high near 72. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44.
Friday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 71.
Friday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 46.
Saturday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 65.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 47.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 66.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 70.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Tuesday
A slight chance of rain. Areas of fog. Otherwise, mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa CA
 38.45°N 122.7°W (Elev. 190 ft)
Last Update:
2:36 pm PDT Apr 21, 2026
Forecast Valid:
5pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation