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.

57°F

14°C

Humidity 30%
Wind Speed Vrbl 3 mph
Barometer 30.44 in (1031.3 mb)
Dewpoint 26°F (-3°C)
Visibility NA
Last update 9 Apr 3:54 pm EDT
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South wind 5 to 10 mph.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers before 2am. Increasing clouds, with a low around 43. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 56. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North wind 5 to 10 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. South wind 5 to 10 mph.
Friday
Partly sunny, with a high near 65. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers before 2am. Increasing clouds, with a low around 43. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 56. Northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 35. North wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly cloudy, with a high near 72.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 60.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Lake Hopatcong NJ
 41°N 74.54°W (Elev. 1237 ft)
Last Update:
2:23 pm EDT Apr 9, 2026
Forecast Valid:
4pm EDT Apr 9, 2026-6pm EDT Apr 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