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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

50°F

10°C

Humidity 61%
Wind Speed N 0 MPH
Barometer 30.44 in (1030.82 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 09 Jan 11:35 AM PST
Extended Forecast for

Saint Helena CA

  • Today

    Today: Sunny, with a high near 55. Light east northeast wind.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 56. Calm wind.

    High: 56 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 4am. Otherwise, mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 55. Light east northeast wind.
Tonight
Patchy frost after 3am. Otherwise, mostly clear, with a low around 35. Calm wind.
Saturday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 56. Calm wind.
Saturday Night
Patchy frost after 4am. Otherwise, mostly cloudy, with a low around 36. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 59. Calm wind.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
Last Update:
12:26 am PST Jan 9, 2026
Forecast Valid:
11am PST Jan 9, 2026-6pm PST Jan 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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