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.

48°F

9°C

Humidity 68%
Wind Speed SW 5 mph
Barometer 29.97 in (1015.3 mb)
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 26 Mar 7:54 am EDT
Extended Forecast for

Lake Hopatcong NJ

  • Today

    Today: A chance of showers, mainly after 5pm. Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Showers, mainly after 11pm. Low around 44. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 49. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Sunny, with a high near 38. Northwest wind around 10 mph, with gusts as high as 25 mph.

    High: 38 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers, mainly after 5pm. Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly after 11pm. Low around 44. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 49. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 38. Northwest wind around 10 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 57.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
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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:
4:10 am EDT Mar 26, 2026
Forecast Valid:
8am EDT Mar 26, 2026-6pm EDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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