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 85%
Wind Speed Calm
Barometer 30.40 in (1029.8 mb)
Dewpoint 40°F (4°C)
Visibility NA
Last update 2 Apr 9:54 am EDT
Extended Forecast for

Lake Hopatcong NJ

  • Today

    Today: A slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 45. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers, mainly between 1am and 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 37. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Cloudy then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 54. Southwest wind around 5 mph.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 45. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
A chance of showers, mainly between 1am and 3am. Patchy fog after 3am. Otherwise, cloudy, with a low around 37. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 54. Southwest wind around 5 mph.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 72. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, mainly before 2pm. High near 64. Chance of precipitation is 90%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Sunny, with a high near 49.
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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:
4:11 am EDT Apr 2, 2026
Forecast Valid:
9am EDT Apr 2, 2026-6pm EDT Apr 8, 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