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.

54°F

12°C

Humidity 93%
Wind Speed Vrbl 6 mph
Barometer 29.76 in (1007.9 mb)
Dewpoint 52°F (11°C)
Visibility NA
Wind Chill52°F (11°C)
Last update 5 Apr 3:54 pm EDT
Extended Forecast for

Lake Hopatcong NJ

  • This Afternoon

    This Afternoon: A chance of showers before 5pm. Cloudy, with a high near 60. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Northwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 52. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 34. West wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers before 5pm. Cloudy, with a high near 60. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Northwest wind around 5 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 52. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 34. West wind around 5 mph becoming calm. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 45. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Sunny, with a high near 49.
Wednesday Night
Mostly clear, with a low around 29.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 66.
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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:
4:10 pm EDT Apr 5, 2026
Forecast Valid:
4pm EDT Apr 5, 2026-6pm EDT Apr 12, 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