Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Overcast

63°F

17°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 30 Sep 09:00 PM PDT
Extended Forecast for

Saint Helena CA

  • Tonight

    Tonight: Drizzle likely, mainly between 11pm and 5am, then rain or drizzle likely after 5am.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 54. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Rain Likely
    and Patchy
    Fog

  • Wednesday

    Wednesday: Rain, mainly before 11am, then a chance of drizzle after 11am.  Patchy fog before 8am. High near 67. Light south wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Rain and
    Patchy Fog
    then Chance
    Drizzle

  • Wednesday Night

    Wednesday Night: A chance of drizzle before 11pm.  Areas of fog after 10pm.  Otherwise, mostly cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Chance
    Drizzle and
    Areas Fog
    then Areas
    Fog

  • Thursday

    Thursday: Areas of fog before 11am.  Otherwise, partly sunny, with a high near 75. Calm wind.

    High: 75 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 50. Light northwest wind.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Drizzle likely, mainly between 11pm and 5am, then rain or drizzle likely after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 54. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly before 11am, then a chance of drizzle after 11am. Patchy fog before 8am. High near 67. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of drizzle before 11pm. Areas of fog after 10pm. Otherwise, mostly cloudy, with a low around 51. Light and variable wind.
Thursday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 75. Calm wind.
Thursday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 50. Light northwest wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
1:26 pm PDT Sep 30, 2025
9pm PDT Sep 30, 2025-6pm PDT Oct 7, 2025
 
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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