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

Novato / Gnoss Field (KDVO)

Lat: 38.14178°NLon: 122.55463°WElev: 3.0ft.

Clear

57°F

14°C

Humidity 93%
Wind Speed NNW 6 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Aug 11:35 PM PDT
Extended Forecast for

Petaluma CA

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, cloudy, with a steady temperature around 56. Light west wind.

    Low: 56 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 55. West wind around 5 mph becoming calm  in the evening.

    Low: 55 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 84 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 55. West wind 5 to 8 mph becoming calm  in the evening.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 82.

    High: 82 °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 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, cloudy, with a steady temperature around 56. Light west wind.
Tuesday
Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 55. West wind around 5 mph becoming calm in the evening.
Wednesday
Areas of fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 55. West wind 5 to 8 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 82.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 79.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 53.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 81.
Saturday Night
Patchy fog. Otherwise, partly cloudy, 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 53.
Monday
Areas of fog. Otherwise, partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Petaluma CA
 38.24°N 122.62°W (Elev. 39 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

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Hourly Weather Forecast

National Digital Forecast Database