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

Severe Weather for Northeast Southeastward into the Southern Plains; Flooding in the Upper Great Lakes

Severe thunderstorms are expected from the Northeast to Texas through the night and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains and the mid-Atlantic. There is late-season snow over the Northern/Central Rockies and the Northern Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

53°F

12°C

Humidity 30%
Wind Speed N 8 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 17 Apr 03:54 AM PDT
Extended Forecast for

3 Miles SW Napa CA

  • Today

    Today: Sunny, with a high near 73. North wind 5 to 7 mph becoming light and variable.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.

    High: 62 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 47.

    Low: 47 °F

    Rain Likely
    and Patchy
    Fog

  • Tuesday

    Tuesday: A chance of rain, then showers likely and possibly a thunderstorm after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 60.

    High: 60 °F

    Showers
    Likely and
    Patchy Fog

Detailed Forecast

Today
Sunny, with a high near 73. North wind 5 to 7 mph becoming light and variable.
Tonight
Partly cloudy, with a low around 43. Light and variable wind.
Saturday
Mostly sunny, with a high near 75. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Monday Night
Rain likely, mainly before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 47.
Tuesday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 60.
Tuesday Night
A chance of rain. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Patchy fog. Otherwise, mostly sunny, with a high near 65.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Thursday
Patchy fog. Otherwise, sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Napa CA
 38.26°N 122.34°W (Elev. 157 ft)
Last Update:
2:27 am PDT Apr 17, 2026
Forecast Valid:
4am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation