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

Storm Brings Rain and Snow to the Southwest U.S. this weekend; Heavy Snow and Rain for Alaska

A storm will pass through the southwestern U.S. this weekend with widespread rain and mountain snow. Rainfall will be mostly beneficial but poses a risk for dangerous debris flows over recent burn scars. A significant winter storm will impact Alaska through the weekend with heavy snow across western Alaska and heavy rainfall across Southcentral with strong winds and marine/coastal impacts. 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.

Clear

46°F

8°C

Humidity 28%
Wind Speed N 6 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 26 Jan 07:05 AM PST
Extended Forecast for

Saint Helena CA

Freeze Watch January 27, 01:00am until January 29, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Today

    Today: Sunny, with a high near 58. Breezy, with a northwest wind 5 to 10 mph becoming north northeast 18 to 23 mph in the morning. Winds could gust as high as 28 mph.

    High: 58 °F

    Sunny and
    Breezy then
    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. North wind 6 to 10 mph.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64. North wind 14 to 20 mph, with gusts as high as 25 mph.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Wednesday

    Wednesday: Areas of frost before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Areas Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 36.

    Low: 36 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 58. Breezy, with a northwest wind 5 to 10 mph becoming north northeast 18 to 23 mph in the morning. Winds could gust as high as 28 mph.
Tonight
Clear, with a low around 39. North wind 6 to 10 mph.
Monday
Sunny, with a high near 64. North wind 14 to 20 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 35. Calm wind.
Tuesday
Sunny, with a high near 62. Calm wind.
Tuesday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 35.
Wednesday
Areas of frost before 8am. Otherwise, sunny, with a high near 62.
Wednesday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
A chance of rain, mainly after 4am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 40.
Friday
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 56.
Friday Night
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Saturday
Rain likely. Patchy fog. Otherwise, partly sunny, with a high near 58.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena CA
 38.51°N 122.46°W (Elev. 203 ft)
Last Update:
12:26 am PST Jan 26, 2025
Forecast Valid:
7am PST Jan 26, 2025-6pm PST Feb 1, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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