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.

40°F

4°C

Humidity 65%
Wind Speed Vrbl 7 G 16 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 12 Mar 11:54 am EDT
Extended Forecast for

Lake Hopatcong NJ

  • This Afternoon

    This Afternoon: A chance of rain and snow before 1pm, then a chance of snow. Cloudy, with a steady temperature around 38. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than one inch possible.

    High: 38 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Northwest wind 5 to 10 mph.

    Low: 26 °F

    Decreasing
    Clouds

  • Friday

    Friday: Increasing clouds, with a high near 43. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 25 mph.

    High: 43 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of rain before 2am. Partly cloudy, with a low around 33. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 47. West wind around 10 mph, with gusts as high as 25 mph.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 46.

    High: 46 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Rain

Detailed Forecast

This Afternoon
A chance of rain and snow before 1pm, then a chance of snow. Cloudy, with a steady temperature around 38. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Total daytime snow accumulation of less than one inch possible.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Northwest wind 5 to 10 mph.
Friday
Increasing clouds, with a high near 43. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 25 mph.
Friday Night
A slight chance of rain before 2am. Partly cloudy, with a low around 33. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 47. West wind around 10 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Cloudy, with a high near 46.
Sunday Night
Rain, mainly after 2am. Low around 39. Chance of precipitation is 80%.
Monday
Rain. High near 61. Chance of precipitation is 90%.
Monday Night
Rain likely before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 36.
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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:
6:09 am EDT Mar 12, 2026
Forecast Valid:
12pm EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation