National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

40°F

4°C

Humidity 51%
Wind Speed NW 10 G 26 mph
Barometer 30.03 in (1017.8 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 24 Dec 7:54 am EST
Extended Forecast for

Lake Hopatcong NJ

  • Today

    Today: Sunny, with a high near 38. Northwest wind 10 to 15 mph, with gusts as high as 40 mph.

    High: 38 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Partly sunny, with a high near 41. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 16 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of snow after 1pm. Mostly cloudy, with a high near 26. North wind around 5 mph becoming calm. Chance of precipitation is 50%. New snow accumulation of around an inch possible.

    High: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: Snow. Low around 20. Chance of precipitation is 100%.

    Low: 20 °F

    Snow

  • Saturday

    Saturday: Snow likely, mainly before 1pm. Cloudy, with a high near 30. Chance of precipitation is 60%.

    High: 30 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Cloudy, with a low around 23.

    Low: 23 °F

    Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Today
Sunny, with a high near 38. Northwest wind 10 to 15 mph, with gusts as high as 40 mph.
Tonight
Increasing clouds, with a low around 24. Calm wind.
Christmas Day
Partly sunny, with a high near 41. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 16. North wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A chance of snow after 1pm. Mostly cloudy, with a high near 26. North wind around 5 mph becoming calm. Chance of precipitation is 50%. New snow accumulation of around an inch possible.
Friday Night
Snow. Low around 20. Chance of precipitation is 100%.
Saturday
Snow likely, mainly before 1pm. Cloudy, with a high near 30. Chance of precipitation is 60%.
Saturday Night
Cloudy, with a low around 23.
Sunday
Rain likely, mainly after 1pm. Cloudy, with a high near 38. Chance of precipitation is 70%.
Sunday Night
Rain likely, mainly before 1am. Cloudy, with a low around 25. Chance of precipitation is 70%.
Monday
A chance of snow. Partly sunny, with a high near 33. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.94°N 74.61°W (Elev. 928 ft)
Last Update:
4:14 am EST Dec 24, 2025
Forecast Valid:
8am EST Dec 24, 2025-6pm EST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation