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.

31°F

-1°C

Humidity 96%
Wind Speed Calm
Barometer 29.97 in (1015.2 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 9 Mar 4:54 am EDT
Extended Forecast for

Lake Hopatcong NJ

  • Today

    Today: Sunny, with a high near 65. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. South wind 5 to 10 mph becoming light southwest after midnight.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 67. Light southeast wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm, then showers after 2am. Low around 48. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Showers

  • Thursday

    Thursday: Rain showers before 2pm, then a chance of snow showers. High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Showers then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow showers before 8pm. Mostly clear, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Friday

    Friday: A chance of rain and snow showers after 2pm. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Partly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 65. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 44. South wind 5 to 10 mph becoming light southwest after midnight.
Tuesday
Sunny, with a high near 71. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 50. Calm wind.
Wednesday
A chance of showers. Mostly cloudy, with a high near 67. Light southeast wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Low around 48. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers before 2pm, then a chance of snow showers. High near 53. Chance of precipitation is 80%.
Thursday Night
A chance of snow showers before 8pm. Mostly clear, with a low around 27. Chance of precipitation is 30%.
Friday
A chance of rain and snow showers after 2pm. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A chance of rain and snow showers. Cloudy, with a high near 49. Chance of precipitation is 30%.
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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:
4:09 am EDT Mar 9, 2026
Forecast Valid:
5am EDT Mar 9, 2026-6pm EDT Mar 15, 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