Great Lakes Snow through Friday; High Winds in the Northern and Central Plains

A clipper storm will drop south from Canada today bringing wintry weather from the Upper Midwest to the Great Lakes through Friday. This system is expected to bring strong northerly winds to much of the northern and central High Plains this afternoon through Friday, with gusts up to 60 mph expected. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

haze

47°F

8°C

Humidity 92%
Wind Speed E 14 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 45°F (7°C)
Visibility 5.00 mi
Wind Chill41°F (5°C)
Last update 15 Jan 08:54 AM PST
Extended Forecast for

4 Miles E Saint Helena CA

  • Today

    Today: Sunny, with a high near 66. Calm wind becoming north northeast around 5 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 65. Light northeast wind.

    High: 65 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Calm wind becoming north northeast around 5 mph.
Tonight
Mostly clear, with a low around 45. Calm wind.
Friday
Sunny, with a high near 66. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 43. Calm wind.
Saturday
Sunny, with a high near 65. Light northeast wind.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 43.
M.L.King Day
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
12:26 am PST Jan 15, 2026
9am PST Jan 15, 2026-6pm PST Jan 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database