Arctic Air for the Northeast and Mid-Atlantic; Increase Rainfall for Pacific Northwest

An arctic cold front will quickly track across 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 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.

Clear

46°F

8°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 06 Feb 03:54 AM PST
Extended Forecast for

4 Miles E Saint Helena CA

  • Today

    Today: Sunny, with a high near 69. Calm wind.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: A 20 percent chance of rain after 10am.  Partly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 64 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 10pm.  Areas of fog.  Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Rain and
    Areas Fog
    then Areas
    Fog

  • Monday

    Monday: Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A slight chance of rain after 10pm.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain, mainly after 10am.  Partly sunny, with a high near 58.

    High: 58 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 69. Calm wind.
Tonight
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 44. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 67. Calm wind.
Saturday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 44. Calm wind.
Sunday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 64. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of rain before 10pm. Areas of fog. Otherwise, mostly cloudy, with a low around 45.
Monday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 62.
Monday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 43.
Tuesday
A chance of rain, mainly after 10am. Partly sunny, with a high near 58.
Tuesday Night
A chance of rain. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 40.
Wednesday
A chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 59.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
12:39 am PST Feb 6, 2026
4am PST Feb 6, 2026-6pm PST Feb 12, 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