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.

50°F

10°C

Humidity 57%
Wind Speed Vrbl 5 mph
Barometer 29.94 in (1014.3 mb)
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 9 Nov 5:54 pm EST
Extended Forecast for

Lake Hopatcong NJ

  • Tonight

    Tonight: Increasing clouds, with a low around 39. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 58. West wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 58 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. West wind around 5 mph.

    Low: 39 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 59. Northwest wind around 5 mph becoming calm.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Cloudy, with a high near 56. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Chance Rain
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain. Low around 37. Chance of precipitation is 90%.

    Low: 37 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.

    High: 42 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 39. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 58. West wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 39. West wind around 5 mph.
Veterans Day
Mostly sunny, with a high near 59. Northwest wind around 5 mph becoming calm.
Wednesday Night
Mostly cloudy, with a low around 40. Calm wind.
Thursday
Rain likely, mainly after 1pm. Cloudy, with a high near 56. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 37. Chance of precipitation is 90%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.
Friday Night
A chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 44.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.98°N 74.6°W (Elev. 997 ft)
Last Update:
4:07 pm EST Nov 9, 2026
Forecast Valid:
6pm EST Nov 9, 2026-6pm EST Nov 16, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation