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.

87°F

31°C

Humidity 37%
Wind Speed Vrbl 6 mph
Barometer 29.77 in (1007.1 mb)
Dewpoint 58°F (14°C)
Visibility NA
Heat Index86°F (30°C)
Last update 16 Apr 3:54 pm EDT
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

  • Tonight

    Tonight: A slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 61. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers, mainly after 4pm. Mostly sunny, with a high near 74. Northwest wind around 5 mph. Chance of precipitation is 30%.

    High: 74 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. North wind around 5 mph becoming east after midnight.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67. Southeast wind around 5 mph.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 49. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 53. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Partly cloudy, with a low around 32. Chance of precipitation is 60%.

    Low: 32 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 61. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 20%.
Friday
A chance of showers, mainly after 4pm. Mostly sunny, with a high near 74. Northwest wind around 5 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 55. North wind around 5 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 67. Southeast wind around 5 mph.
Saturday Night
A chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 49. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers. High near 53. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 32. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Lake Hopatcong NJ
 41°N 74.54°W (Elev. 1237 ft)
Last Update:
4:10 pm EDT Apr 16, 2026
Forecast Valid:
4pm EDT Apr 16, 2026-6pm EDT Apr 23, 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