Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

rain,mist

57°F

14°C

Humidity 93%
Wind Speed SSW 8 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 55°F (13°C)
Visibility 2.50 mi
Last update 31 Mar 03:55 PM PDT
Extended Forecast for

4 Miles W Saint Helena CA

  • This Afternoon

    This Afternoon: A 50 percent chance of rain.  Partly sunny, with a steady temperature around 56. Southwest wind around 14 mph.

    High: 56 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly between 11pm and 5am.  Mostly cloudy, with a low around 51. Southwest wind 7 to 15 mph, with gusts as high as 25 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain.  Temperature falling to around 51 by 11am. West southwest wind 9 to 17 mph, with gusts as high as 32 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 46. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Thursday

    Thursday: Sunny, with a high near 59. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of rain. Partly sunny, with a steady temperature around 56. Southwest wind around 14 mph.
Tonight
A 30 percent chance of rain, mainly between 11pm and 5am. Mostly cloudy, with a low around 51. Southwest wind 7 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. Temperature falling to around 51 by 11am. West southwest wind 9 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 46. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Sunny, with a high near 59. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.
Thursday Night
Clear, with a low around 51.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
1:31 pm PDT Mar 31, 2026
4pm PDT Mar 31, 2026-6pm PDT Apr 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database