Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to develop off the southeast U.S. coast tonight and is expected to strengthen and bring flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Fog

51°F

11°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 51°F (11°C)
Visibility 0.25 mi
Last update 11 Oct 01:40 AM PDT
Extended Forecast for

Sonoma CA

  • Overnight

    Overnight: Mostly clear, with a low around 48. Northwest wind around 6 mph.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 46. North wind 6 to 8 mph.

    Low: 46 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. West northwest wind 7 to 9 mph.

    Low: 47 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: A 50 percent chance of rain after 11am.  Partly sunny, with a high near 67. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain.  Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Rain

  • Tuesday

    Tuesday: Rain likely.  Mostly cloudy, with a high near 62.

    High: 62 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 50.

    Low: 50 °F

    Rain Likely
    and Patchy
    Fog

Detailed Forecast

Overnight
Mostly clear, with a low around 48. Northwest wind around 6 mph.
Saturday
Sunny, with a high near 71. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 46. North wind 6 to 8 mph.
Sunday
Sunny, with a high near 74. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 47. West northwest wind 7 to 9 mph.
Columbus Day
A 50 percent chance of rain after 11am. Partly sunny, with a high near 67. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 50. Chance of precipitation is 80%.
Tuesday
Rain likely. Mostly cloudy, with a high near 62.
Tuesday Night
Rain likely, mainly before 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 50.
Wednesday
A chance of rain. Patchy fog before 8am. Otherwise, partly sunny, with a high near 68.
Wednesday Night
A slight chance of rain. Patchy fog. Otherwise, partly cloudy, with a low around 49.
Thursday
Areas of fog. Otherwise, mostly sunny, with a high near 68.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 48.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
1:26 am PDT Oct 11, 2025
1am PDT Oct 11, 2025-6pm PDT Oct 17, 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