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.

45°F

7°C

Humidity 97%
Wind Speed Calm
Barometer 29.83 in (1010.6 mb)
Dewpoint 44°F (7°C)
Visibility NA
Last update 5 Apr 9:54 am EDT
Extended Forecast for

Hopatcong NJ

  • Today

    Today: Showers, mainly before 3pm. Patchy fog before 11am. High near 59. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 34. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 51. West wind around 10 mph, with gusts as high as 20 mph.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: A chance of rain showers before 2am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 34. West wind around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 43 °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 30.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly before 3pm. Patchy fog before 11am. High near 59. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 34. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 51. West wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A chance of rain showers before 2am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 34. West wind around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
Mostly sunny, with a high near 43. West 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 30.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hopatcong NJ
 40.95°N 74.67°W (Elev. 1096 ft)
Last Update:
5:48 am EDT Apr 5, 2026
Forecast Valid:
10am EDT Apr 5, 2026-6pm EDT Apr 11, 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