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.

33°F

1°C

Humidity 66%
Wind Speed Vrbl 7 mph
Barometer 29.66 in (1005.7 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 25 Feb 10:54 am EST
Extended Forecast for

Lake Hopatcong NJ

  • Today

    Today: Partly sunny, with a high near 42. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 24. West wind around 5 mph.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow after 1pm. Partly sunny, with a high near 37. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.

    High: 37 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Calm wind.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 41. Calm wind becoming southwest around 5 mph.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 42. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 24. West wind around 5 mph.
Thursday
A slight chance of snow after 1pm. Partly sunny, with a high near 37. Calm wind becoming west around 5 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 19. Calm wind.
Friday
Sunny, with a high near 41. Calm wind becoming southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 16.
Monday
A chance of snow. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Tuesday
A chance of snow. Partly sunny, with a high near 31. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.96°N 74.61°W (Elev. 984 ft)
Last Update:
6:10 am EST Feb 25, 2026
Forecast Valid:
11am EST Feb 25, 2026-6pm EST Mar 3, 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