
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 Chill | 41°F (5°C) |
| Last update | 15 Jan 08:54 AM PST |
Extended Forecast for
4 Miles E Saint Helena CA
Today

High: 66 °F
Sunny
Tonight

Low: 45 °F
Mostly Clear
Friday

High: 66 °F
Sunny
Friday Night

Low: 43 °F
Mostly Clear
Saturday

High: 65 °F
Sunny
Saturday Night

Low: 43 °F
Partly Cloudy
Sunday

High: 66 °F
Sunny
Sunday Night

Low: 43 °F
Mostly Clear
M.L.King Day

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles E Saint Helena CA
38.5°N 122.4°W (Elev. 476 ft)
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


