Critical Fire Weather Conditions Continue; Pacific Storm to Bring Heavy Snow to the Sierra-Nevada

Critical fire weather conditions are forecast for the Southern Plains and portions of Florida through Thursday, as gusty winds and dry conditions return to the region. A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast and central Great Basin, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

55°F

13°C

Humidity 93%
Wind Speed S 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 54°F (12°C)
Visibility 8.00 mi
Last update 21 Apr 09:00 AM PDT
Extended Forecast for

5 Miles SSW Lake Berryessa CA

  • Today

    Today: Showers and thunderstorms, mainly before 4pm, then rain likely and possibly a thunderstorm after 5pm.  High near 55. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers

  • Tonight

    Tonight: A chance of rain before 9pm, then a chance of rain after 1am.  Mostly cloudy, with a low around 43. West southwest wind 5 to 8 mph.  Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain before 11am.  Mostly sunny, with a high near 60. Southwest wind 3 to 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Chance Rain
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. West southwest wind around 6 mph becoming light and variable  in the evening.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68. Light and variable wind becoming north around 5 mph in the afternoon.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Friday Night

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

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm, then rain likely and possibly a thunderstorm after 5pm. High near 55. West southwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of rain before 9pm, then a chance of rain after 1am. Mostly cloudy, with a low around 43. West southwest wind 5 to 8 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 30 percent chance of rain before 11am. Mostly sunny, with a high near 60. Southwest wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly clear, with a low around 44. West southwest wind around 6 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 68. Light and variable wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
8:47 am PDT Apr 21, 2026
9am PDT Apr 21, 2026-6pm PDT Apr 27, 2026
 
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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