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

Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

48°F

9°C

Humidity 93%
Wind Speed N 9 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 19 Nov 03:35 AM PST
Extended Forecast for

2 Miles NNW Vallejo CA

  • Overnight

    Overnight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Light and variable wind becoming south southwest 5 to 9 mph in the morning.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Rain, mainly between 10pm and 4am. Low around 50. South southwest wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Rain

  • Thursday

    Thursday: A 50 percent chance of rain, mainly before 10am. Partly sunny, with a high near 59. West northwest wind 7 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Chance Rain
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. North northeast wind 5 to 9 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 49. Calm wind.
Wednesday
Mostly cloudy, with a high near 58. Light and variable wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Rain, mainly between 10pm and 4am. Low around 50. South southwest wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 50 percent chance of rain, mainly before 10am. Partly sunny, with a high near 59. West northwest wind 7 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 44. North northeast wind 5 to 9 mph.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 45.
Monday
Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Vallejo CA
 38.16°N 122.25°W (Elev. 26 ft)
Last Update:
1:37 am PST Nov 19, 2025
Forecast Valid:
3am PST Nov 19, 2025-6pm PST Nov 25, 2025
 
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