Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

55°F

13°C

Humidity 98%
Wind Speed E 1 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 20 Aug 12:54 AM PDT
Extended Forecast for

Graton CA

  • Overnight

    Overnight: Areas of fog.  Otherwise, mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, mostly cloudy, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Areas Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 54. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 8am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 80 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 52. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, sunny, with a high near 83.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Saturday Night

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

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 8am.  Otherwise, mostly sunny, with a high near 83.

    High: 83 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Overnight
Areas of fog. Otherwise, mostly cloudy, with a low around 53. Calm wind.
Thursday
Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Thursday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 54. South southwest wind around 5 mph becoming calm in the evening.
Friday
Areas of fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 52. West southwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 83.
Saturday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.
Sunday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 83.
Sunday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 53.
Monday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 78.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 52.
Tuesday
Areas of fog. Otherwise, partly sunny, with a high near 79.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 52.
Wednesday
Areas of fog. Otherwise, partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Graton CA
 38.42°N 122.87°W (Elev. 118 ft)
12:46 am PDT Aug 20, 2026
1am PDT Aug 20, 2026-6pm PDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database