Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Novato / Gnoss Field (KDVO)

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

Clear

79°F

26°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 10:35 AM PDT
Extended Forecast for

Petaluma CA

  • Today

    Today: Mostly sunny, with a high near 88. West wind 7 to 11 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 59. West wind 5 to 8 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Friday

    Friday: A 20 percent chance of showers before 11am.  Cloudy, with a high near 80. West wind 5 to 11 mph.

    High: 80 °F

    Slight Chance
    Showers then
    Cloudy

  • Friday Night

    Friday Night: Patchy fog after 2am.  Otherwise, cloudy during the early evening, then clearing, with a low around 52. West wind 6 to 11 mph becoming light  in the evening.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 79. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am.  Otherwise, sunny, with a high near 79.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm.  Otherwise, mostly clear, with a low around 51.

    Low: 51 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 11am.  Otherwise, mostly sunny, with a high near 73.

    High: 73 °F

    Areas Fog
    then Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 88. West wind 7 to 11 mph.
Tonight
Increasing clouds, with a low around 59. West wind 5 to 8 mph.
Friday
A 20 percent chance of showers before 11am. Cloudy, with a high near 80. West wind 5 to 11 mph.
Friday Night
Patchy fog after 2am. Otherwise, cloudy during the early evening, then clearing, with a low around 52. West wind 6 to 11 mph becoming light in the evening.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 52.
Sunday
Patchy fog before 10am. Otherwise, sunny, with a high near 79.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 51.
Monday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 51.
Wednesday
Patchy fog. Otherwise, mostly 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)
6:47 am PDT Aug 27, 2026
10am PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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