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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

52°F

11°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 22 Apr 03:00 AM PDT
Extended Forecast for

4 Miles NW Yountville CA

  • Overnight

    Overnight: A 50 percent chance of rain. Areas of fog. Otherwise, mostly cloudy, with a steady temperature around 46. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain
    and Areas Fog

  • Wednesday

    Wednesday: A chance of rain and thunderstorms before 3pm, then a slight chance of rain between 3pm and 4pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 64. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance Rain
    and Areas Fog

  • Wednesday Night

    Wednesday Night: Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 8am. Otherwise, sunny, with a high near 73. Calm wind.

    High: 73 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 45. West southwest wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 71.

    High: 71 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of rain. Areas of fog. Otherwise, mostly cloudy, with a steady temperature around 46. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of rain and thunderstorms before 3pm, then a slight chance of rain between 3pm and 4pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 64. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly clear, with a low around 42. Calm wind.
Thursday
Areas of fog before 8am. Otherwise, sunny, with a high near 73. Calm wind.
Thursday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 45. West southwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 71.
Friday Night
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Yountville CA
 38.43°N 122.41°W (Elev. 180 ft)
Last Update:
2:42 am PDT Apr 22, 2026
Forecast Valid:
3am PDT Apr 22, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation