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Arctic Air for the Northeast and Mid-Atlantic; Increase Moisture for Pacific Northwest; Active Pattern for Hawaii

An arctic cold front will impact the Great Lakes, Northeast and mid-Atlantic. Snow showers and squalls will accompany this system with increasing winds and falling temperatures. Damaging wind gusts may result in tree damage and power outages. Meanwhile, moisture returns for the Pacific Northwest and Hawaii this weekend with both coverage and intensity of rainfall and higher elevation snows. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Fog

52°F

11°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 50°F (10°C)
Visibility 2.00 mi
Last update 07 Feb 11:35 AM PST
Extended Forecast for

4 Miles E Saint Helena CA

  • Today

    Today: Sunny, with a high near 67. Calm wind.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Fog

  • Monday

    Monday: Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 64. Calm wind becoming north around 5 mph in the afternoon.

    High: 64 °F

    Areas Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 45. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain. Partly sunny, with a high near 58.

    High: 58 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain, mainly before 4pm. Partly sunny, with a high near 58.

    High: 58 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 67. Calm wind.
Tonight
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 44. Calm wind.
Sunday
Mostly sunny, with a high near 65. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
Widespread fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 46. Calm wind.
Monday
Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 64. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 45. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 50 percent chance of rain. Partly sunny, with a high near 58.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 40.
Wednesday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 58.
Wednesday Night
A slight chance of rain before 10pm. Patchy fog between 11pm and 3am. Otherwise, mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 38.
Friday
A slight chance of rain. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
Last Update:
11:35 am PST Feb 7, 2026
Forecast Valid:
11am PST Feb 7, 2026-6pm PST Feb 13, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation