Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Overcast

57°F

14°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 09 Apr 11:53 PM PDT
Extended Forecast for

Guerneville CA

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 53. Calm wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10am.  Patchy fog before 10am. High near 63. Calm wind becoming south southwest around 6 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Rain likely and possibly a thunderstorm.  Patchy fog before 11pm, then patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 52. Calm wind.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Rain Likely
    and Patchy
    Fog

  • Saturday

    Saturday: Rain before 2pm, then showers and possibly a thunderstorm after 2pm.  Patchy fog before 8am. High near 60. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then rain after 2am.  Low around 48. South wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 21 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am.  High near 61. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of rain before 11pm.  Partly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: A slight chance of rain before 11am.  Sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10am. Patchy fog before 10am. High near 63. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Rain likely and possibly a thunderstorm. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain before 2pm, then showers and possibly a thunderstorm after 2pm. Patchy fog before 8am. High near 60. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Rain and possibly a thunderstorm before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 48. South wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 61. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of rain before 11pm. Partly cloudy, with a low around 45.
Monday
A slight chance of rain before 11am. Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.52°N 122.98°W (Elev. 95 ft)
11:26 pm PDT Apr 9, 2026
12am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

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