Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

43°F

6°C

Humidity 100%
Wind Speed N 5 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 43°F (6°C)
Visibility 7.00 mi
Wind Chill40°F (4°C)
Last update 19 Jan 01:35 AM PST
Extended Forecast for

2 Miles N Napa Co. Airport CA

  • Overnight

    Overnight: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 63. Calm wind becoming south around 5 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 63. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between 11pm and midnight.  Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog.  Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Patchy Fog

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. Calm wind.
M.L.King Day
Mostly sunny, with a high near 63. Calm wind becoming south around 5 mph.
Monday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming east northeast around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. Calm wind.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 44.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 62.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 43.
Friday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 61.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Saturday
Areas of fog. Otherwise, mostly sunny, with a high near 60.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Napa Co. Airport CA
 38.25°N 122.27°W (Elev. 59 ft)
12:26 am PST Jan 19, 2026
1am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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