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

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

KF6YUA Sebastopol (AR323)

Lat: 38.38033°NLon: 122.82367°WElev: 235.3ft.

NA

55°F

13°C

Humidity 96%
Wind Speed ESE 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 09 Apr 11:40 PM PDT
Extended Forecast for

Graton CA

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 49. 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: 49 °F

    Showers
    Likely and
    Areas Fog

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9am. Areas of fog before 10am. High near 64. 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: 64 °F

    Showers and
    Areas Fog

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 49. Light south southwest wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Rain before 2pm, then showers and possibly a thunderstorm after 2pm. Patchy fog before 8am. High near 60. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 24 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 44. South wind 5 to 10 mph becoming light south southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 44 °F

    Showers

  • Sunday

    Sunday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 61. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of rain before 11pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain
    and Patchy
    Fog then
    Patchy Fog

  • Monday

    Monday: A slight chance of rain before 11am. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain and
    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 49. 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 9am. Areas of fog before 10am. High near 64. 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
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 49. Light south southwest 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. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 24 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 44. South wind 5 to 10 mph becoming light south southeast in the evening. Winds could gust as high as 22 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 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of rain before 11pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 41.
Monday
A slight chance of rain before 11am. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Graton CA
 38.43°N 122.84°W (Elev. 79 ft)
Last Update:
11:26 pm PDT Apr 9, 2026
Forecast Valid:
11pm PDT Apr 9, 2026-6pm PDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation