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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for portions of the central and southern High Plains. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

61°F

16°C

Humidity 70%
Wind Speed SSE 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 21 Apr 02:40 PM PDT
Extended Forecast for

Graton CA

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 61. West southwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 2am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers before 7am, then a slight chance of showers after noon. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 71. Calm wind becoming west around 6 mph in the afternoon.

    High: 71 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 70.

    High: 70 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 65.

    High: 65 °F

    Areas Fog
    then Partly
    Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 61. West southwest wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, then showers likely after 2am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 7am, then a slight chance of showers after noon. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 71. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 43.
Friday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 70.
Friday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 46.
Saturday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 65.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 66.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Graton CA
 38.45°N 122.88°W (Elev. 95 ft)
Last Update:
2:36 pm PDT Apr 21, 2026
Forecast Valid:
2pm PDT Apr 21, 2026-6pm PDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation