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.

36°F

2°C

Humidity 93%
Wind Speed Calm
Barometer 30.33 in (1028.0 mb)
Dewpoint 34°F (1°C)
Visibility NA
Last update 6 Mar 8:54 am EST
Extended Forecast for

Lake Hopatcong NJ

  • Today

    Today: A slight chance of rain before noon. Patchy fog. Otherwise, cloudy, with a high near 42. Northeast wind around 5 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Patchy
    Fog

  • Tonight

    Tonight: A chance of rain, mainly between 11pm and 5am. Patchy fog. Otherwise, cloudy, with a low around 34. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 34 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Widespread fog, mainly before 8am. Otherwise, cloudy, with a high near 54. Southwest wind around 5 mph.

    High: 54 °F

    Fog

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Patchy fog before 10pm. Otherwise, cloudy, with a low around 47. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 60. West wind around 5 mph.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
A slight chance of rain before noon. Patchy fog. Otherwise, cloudy, with a high near 42. Northeast wind around 5 mph. Chance of precipitation is 20%.
Tonight
A chance of rain, mainly between 11pm and 5am. Patchy fog. Otherwise, cloudy, with a low around 34. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
Widespread fog, mainly before 8am. Otherwise, cloudy, with a high near 54. Southwest wind around 5 mph.
Saturday Night
Showers likely, mainly before 1am. Patchy fog before 10pm. Otherwise, cloudy, with a low around 47. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 60. West wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 67.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Thursday
A chance of showers. Mostly sunny, with a high near 49. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.96°N 74.61°W (Elev. 984 ft)
Last Update:
6:16 am EST Mar 6, 2026
Forecast Valid:
9am EST Mar 6, 2026-6pm EDT Mar 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