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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

70°F

21°C

Humidity 19%
Wind Speed N 11 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 16 Apr 01:20 PM PDT
Extended Forecast for

4 Miles W Saint Helena CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. North wind around 11 mph, with gusts as high as 24 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 48. North wind 8 to 16 mph, with gusts as high as 32 mph.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65. North wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. West southwest wind around 6 mph becoming light and variable after midnight.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 61. North wind around 11 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 48. North wind 8 to 16 mph, with gusts as high as 32 mph.
Friday
Sunny, with a high near 65. North wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Friday Night
Partly cloudy, with a low around 52. West southwest wind around 6 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 68. Light and variable wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 61.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 52.
Monday
Rain likely. Mostly cloudy, with a high near 56.
Monday Night
Rain likely. Mostly cloudy, with a low around 52.
Tuesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 55.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Wednesday
A chance of rain. Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
Last Update:
1:26 pm PDT Apr 16, 2026
Forecast Valid:
1pm PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation