National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather Conditions in the Plains; Heavy Snow in the Sierra and Northern Rockies

Gusty winds and warm, very dry conditions will lead to a Critical Risk of fire weather across much of the High Plains through Thursday. A Pacific storm system will bring strong winds and precipitation from the Pacific Northwest to the Northern Rockies, with heavy mountain snow in the Sierra-Nevada and northern Rockies. Heavy snow will continue in the northern Rockies on Thursday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

54°F

12°C

Humidity 87%
Wind Speed E 10 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 50°F (10°C)
Visibility 8.00 mi
Last update 22 Apr 08:35 AM PDT
Extended Forecast for

5 Miles SSE Sonoma CA

  • Today

    Today: A chance of rain and thunderstorms before 2pm, then a slight chance of rain between 2pm and 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance Rain
    and Patchy
    Fog

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 42. West wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 9am. Otherwise, sunny, with a high near 71. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 71 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. West wind 5 to 8 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 68 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 65.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
A chance of rain and thunderstorms before 2pm, then a slight chance of rain between 2pm and 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 42. West wind around 5 mph becoming calm in the evening.
Thursday
Areas of fog before 9am. Otherwise, sunny, with a high near 71. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. West wind 5 to 8 mph becoming calm in the evening.
Friday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 65.
Sunday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 43.
Monday
Areas of fog. Otherwise, mostly sunny, with a high near 67.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Tuesday
Areas of fog. Otherwise, mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Sonoma CA
 38.22°N 122.44°W (Elev. 3 ft)
Last Update:
2:42 am PDT Apr 22, 2026
Forecast Valid:
8am PDT Apr 22, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation