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.

38°F

3°C

Humidity 46%
Wind Speed SW 12 G 22 mph
Barometer 30.09 in (1019.8 mb)
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 13 Mar 11:54 am EDT
Extended Forecast for

Lake Hopatcong NJ

  • This Afternoon

    This Afternoon: A slight chance of snow between 2pm and 3pm. Mostly cloudy, with a high near 42. South wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A chance of snow, possibly mixing with rain after 10pm, then gradually ending. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. South wind around 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 47 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 29. Northwest wind around 5 mph becoming calm after midnight.

    Low: 29 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 46. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 25 mph.

    High: 46 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 38. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 63. Chance of precipitation is 100%.

    High: 63 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers before 8am. Partly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of snow between 2pm and 3pm. Mostly cloudy, with a high near 42. South wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A chance of snow, possibly mixing with rain after 10pm, then gradually ending. Mostly cloudy, then gradually becoming mostly clear, with a low around 34. South wind around 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Increasing clouds, with a low around 29. Northwest wind around 5 mph becoming calm after midnight.
Sunday
Mostly cloudy, with a high near 46. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 25 mph.
Sunday Night
Showers, mainly after 2am. Low around 38. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 63. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm. Low around 32. Chance of precipitation is 80%.
Tuesday
A chance of showers before 8am. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.94°N 74.61°W (Elev. 928 ft)
Last Update:
4:11 am EDT Mar 13, 2026
Forecast Valid:
12pm EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation