Areas of Excessive Rainfall and Severe Thunderstorms; Fire Weather Concerns in the Northern Plains and Four Corners Region

Widespread showers and thunderstorms may bring areas of flash flooding across much of the Southern Plains into the Gulf Coast region and the upper Ohio River Valley into the Mid-Atlantic. A large Pacific storm will bring widespread rain, gusty winds, and mountain snow to California and the Great Basin. Fire weather concerns expected in the Northern Plains and the Four Corners region. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

52°F

11°C

Humidity 87%
Wind Speed W 5 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 27 May 12:10 AM PDT
Extended Forecast for

Sonoma CA

  • Overnight

    Overnight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 45. West northwest wind around 5 mph becoming calm.

    Low: 45 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 7am.  Otherwise, sunny through mid morning, then becoming mostly cloudy, with a high near 71. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 71 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: A 20 percent chance of rain.  Mostly sunny, with a high near 73. Calm wind becoming southwest 5 to 7 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 49. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 72.

    High: 72 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 45. West northwest wind around 5 mph becoming calm.
Wednesday
Patchy fog before 7am. Otherwise, sunny through mid morning, then becoming mostly cloudy, with a high near 71. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A 20 percent chance of rain after 10pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 49. Light and variable wind.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 73. Calm wind becoming southwest 5 to 7 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49. West southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 72.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 49.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78.
Saturday Night
Clear, with a low around 48.
Sunday
Sunny, with a high near 81.
Sunday Night
Clear, with a low around 50.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
12:36 am PDT May 27, 2026
12am PDT May 27, 2026-6pm PDT Jun 2, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database