Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

56°F

13°C

Humidity 97%
Wind Speed ESE 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 55°F (13°C)
Visibility NA
Last update 17 Aug 11:26 PM PDT
Extended Forecast for

Graton CA

  • Tonight

    Tonight: Areas of fog.  Otherwise, mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Areas Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 87. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 87 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Areas of fog after 11pm.  Otherwise, increasing clouds, with a low around 54. Calm wind.

    Low: 54 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 54. Southwest wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 85.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Areas of fog. Otherwise, mostly cloudy, with a low around 52. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 87. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
Areas of fog after 11pm. Otherwise, increasing clouds, with a low around 54. Calm wind.
Wednesday
Areas of fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 54. Southwest wind around 6 mph becoming calm in the evening.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 85.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 84.
Friday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 84.
Saturday Night
Patchy fog. Otherwise, mostly clear, with a low around 53.
Sunday
Areas of fog. Otherwise, mostly sunny, with a high near 81.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 52.
Monday
Areas of fog. Otherwise, mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Graton CA
 38.45°N 122.88°W (Elev. 95 ft)
11:26 pm PDT Aug 17, 2026
11pm PDT Aug 17, 2026-6pm PDT Aug 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