Heavy Rainfall for Portions of the West and Southern Plains; Dangerous Heat for the Northwest

A front will bring chances for showers and thunderstorms over the Central Rockies and Southern Plains. Heavy rains are also possible in southern Arizona. A dangerous heat wave continues across the Pacific Northwest. Hot, dry conditions and lightning may cause new fire starts across the Cascades. Conversely, a cold front will bring unseasonably cool temperatures to much of the lower 48. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

57°F

14°C

Humidity 93%
Wind Speed W 8 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 25 Aug 02:05 AM PDT
Extended Forecast for

Sonoma CA

  • Overnight

    Overnight: Patchy fog after 3am.  Otherwise, partly cloudy, with a steady temperature around 55. Calm wind.

    Low: 55 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 87. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 53. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 53. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 53 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

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

    High: 83 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, partly cloudy, with a steady temperature around 55. Calm wind.
Monday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 87. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 53. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 53. Southwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 51.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 50.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 52.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.43°W (Elev. 95 ft)
1:26 am PDT Aug 25, 2025
2am PDT Aug 25, 2025-6pm PDT Aug 31, 2025
 
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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