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

44°F

7°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 18 Apr 01:53 AM PDT
Extended Forecast for

Graton CA

  • Overnight

    Overnight: Partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am.  Otherwise, increasing clouds, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 69. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 69 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 11pm.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 47. South southwest wind around 6 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: Showers, with thunderstorms also possible after 5pm.  High near 62. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm.  Patchy fog after 11pm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  Patchy fog before 8am.  Otherwise, cloudy, with a high near 62.

    High: 62 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Rain Likely
    and Patchy
    Fog

Detailed Forecast

Overnight
Partly cloudy, with a low around 41. Calm wind.
Saturday
Sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 46. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 69. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
A 40 percent chance of showers after 11pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 47. South southwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, with thunderstorms also possible after 5pm. High near 62. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Patchy fog after 11pm. Low around 48. Chance of precipitation is 90%.
Tuesday
Showers, with thunderstorms also possible after 11am. Patchy fog before 8am. Otherwise, cloudy, with a high near 62.
Tuesday Night
Rain likely, mainly before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Patchy fog before 9am. Otherwise, partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Graton CA
 38.45°N 122.88°W (Elev. 95 ft)
1:41 am PDT Apr 18, 2026
2am PDT Apr 18, 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