Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

57°F

14°C

Humidity 82%
Wind Speed WSW 6 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 31 Mar 01:00 AM PDT
Extended Forecast for

4 Miles NW Yountville CA

  • Overnight

    Overnight: A 10 percent chance of rain after 5am.  Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 67. Calm wind becoming southwest around 6 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 3am, then a slight chance of rain after 4am.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Rain likely, mainly after 11am.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 63. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain Likely
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Rain.  Patchy fog after 5am. Low around 42. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain and
    Patchy Fog

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 51. Calm wind.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 67. Calm wind becoming southwest around 6 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A slight chance of rain before 3am, then a slight chance of rain after 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely, mainly after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 63. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Patchy fog after 5am. Low around 42. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Sunny, with a high near 67.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Yountville CA
 38.43°N 122.41°W (Elev. 180 ft)
12:57 am PDT Mar 31, 2026
1am PDT Mar 31, 2026-6pm PDT Apr 6, 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