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.

61°F

16°C

Humidity 52%
Wind Speed Calm
Barometer 30.13 in (1020.4 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 10 Apr 10:54 pm EDT
Extended Forecast for

Lake Hopatcong NJ

  • Tonight

    Tonight: A slight chance of showers between 1am and 2am. Cloudy early, then gradual clearing, with a low around 44. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 57. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 58. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45. South wind 5 to 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 20%.

    High: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers between 1am and 2am. Cloudy early, then gradual clearing, with a low around 44. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 57. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 35. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Sunday
Partly sunny, with a high near 58. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 45. South wind 5 to 10 mph.
Monday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 79.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 75.
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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:
4:10 pm EDT Apr 10, 2026
Forecast Valid:
11pm EDT Apr 10, 2026-6pm EDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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