Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Fog

41°F

5°C

Humidity 100%
Wind Speed NNW 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 13 Apr 07:15 AM PDT
Extended Forecast for

4 Miles W Saint Helena CA

  • Today

    Today: Sunny, with a high near 57. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. West northwest wind 6 to 8 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. West wind 7 to 9 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. West wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 11pm.  Partly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 57. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 46. West northwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 60. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 47. West wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 60. West wind 6 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 60.
Thursday Night
Clear, with a low around 51.
Friday
Sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A chance of rain. Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
1:26 am PDT Apr 13, 2026
7am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database