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

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

50°F

10°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Apr 02:54 AM PDT
Extended Forecast for

Napa CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 70 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 3am. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46. Southwest wind around 6 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 66. Calm wind becoming south southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain. Patchy fog after 2am. Low around 49. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. Patchy fog before 8am. High near 61. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely then
    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of rain. Patchy fog before 8am. Otherwise, partly sunny, with a high near 65.

    High: 65 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
Mostly cloudy, with a low around 47. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
A 20 percent chance of rain after 3am. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46. Southwest wind around 6 mph becoming calm in the evening.
Monday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 66. Calm wind becoming south southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Patchy fog after 2am. Low around 49. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. Patchy fog before 8am. High near 61. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Wednesday
A chance of rain. Patchy fog before 8am. Otherwise, partly sunny, with a high near 65.
Wednesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 43.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 70.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 72.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 47.
Saturday
Areas of fog. Otherwise, mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
1:26 am PDT Apr 19, 2026
Forecast Valid:
3am PDT Apr 19, 2026-6pm PDT Apr 25, 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