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.

44°F

7°C

Humidity 43%
Wind Speed N 5 mph
Barometer 30.06 in (1018.2 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 27 Mar 3:54 pm EDT
Extended Forecast for

Lake Hopatcong NJ

  • Tonight

    Tonight: Partly cloudy, with a low around 24. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 39. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 50. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 25 mph.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Southwest wind around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.

    Low: 49 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain before 2pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 39. North wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 50. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 37. Southwest wind around 5 mph.
Monday
Partly sunny, with a high near 57.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Tuesday
A chance of rain before 2pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
A chance of rain. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
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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 Mar 27, 2026
Forecast Valid:
4pm EDT Mar 27, 2026-6pm EDT Apr 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