Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

49°F

9°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 17 Apr 10:53 PM PDT
Extended Forecast for

6 Miles SSW Saint Helena CA

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 71. Calm wind becoming south around 6 mph in the afternoon.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 11pm.  Mostly cloudy, with a low around 50. Southwest wind 3 to 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 59. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm, then showers after 8pm.  Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  Cloudy, with a high near 56.

    High: 56 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. Calm wind.
Saturday
Sunny, with a high near 71. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 53. Light and variable wind.
Sunday
Partly sunny, with a high near 66. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 50. Southwest wind 3 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 53. Chance of precipitation is 90%.
Tuesday
Showers and possibly a thunderstorm. Cloudy, with a high near 56.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Partly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Saint Helena CA
 38.43°N 122.52°W (Elev. 1093 ft)
10:56 pm PDT Apr 17, 2026
11pm PDT Apr 17, 2026-6pm PDT Apr 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database