Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

63°F

17°C

Humidity 72%
Wind Speed W 14 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 01 Mar 02:39 PM PST
Extended Forecast for

3 Miles NNW Vallejo CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 63. West southwest wind 11 to 13 mph, with gusts as high as 18 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain before 2am, then a slight chance of rain after 3am.  Patchy fog before midnight, then patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 51. Southwest wind 6 to 9 mph.  Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Patchy Fog
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: A 20 percent chance of rain before 10am.  Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 63. West wind 3 to 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Slight Chance
    Rain and
    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 48. West wind around 6 mph.

    Low: 48 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 64. West southwest wind 3 to 8 mph.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 63. West southwest wind 11 to 13 mph, with gusts as high as 18 mph.
Tonight
A slight chance of rain before 2am, then a slight chance of rain after 3am. Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly cloudy, with a low around 51. Southwest wind 6 to 9 mph. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 20 percent chance of rain before 10am. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 63. West wind 3 to 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 48. West wind around 6 mph.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. West southwest wind 3 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Clear, with a low around 45.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Vallejo CA
 38.18°N 122.26°W (Elev. 56 ft)
12:26 pm PST Mar 1, 2026
2pm PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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