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.

45°F

7°C

Humidity 44%
Wind Speed NA
Barometer 30.00 in (1016.8 mb)
Dewpoint 24°F (-4°C)
Visibility NA
Last update 14 Feb 1:54 pm EST
Extended Forecast for

Lake Hopatcong NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 40. Northwest wind around 5 mph.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 37. Calm wind becoming east around 5 mph.

    High: 37 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Cloudy, with a high near 42. Chance of precipitation is 60%.

    High: 42 °F

    Rain Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 40. Northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 22. Calm wind.
Sunday
Increasing clouds, with a high near 37. Calm wind becoming east around 5 mph.
Sunday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Washington's Birthday
Partly sunny, with a high near 40. Calm wind.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Rain likely, mainly after 1pm. Cloudy, with a high near 42. Chance of precipitation is 60%.
Wednesday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 50%.
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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:
4:15 am EST Feb 14, 2026
Forecast Valid:
2pm EST Feb 14, 2026-6pm EST Feb 20, 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