Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

59°F

15°C

Humidity 58%
Wind Speed SSE 5 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 18 Apr 08:20 PM PDT
Extended Forecast for

5 Miles SSW Saint Helena CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 65 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 50. West southwest wind 5 to 8 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Slight Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 57. South southeast wind 7 to 10 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers.  Low around 54. South wind 6 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 54 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 55. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.  Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers.  Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Light and variable wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 50. West southwest wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 57. South southeast wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Showers. Low around 54. South wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 55. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Wednesday
A chance of showers. Partly sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
1:26 pm PDT Apr 18, 2026
8pm PDT Apr 18, 2026-6pm PDT Apr 25, 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