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.

46°F

8°C

Humidity 42%
Wind Speed N 7 G 17 mph
Barometer 30.02 in (1017.3 mb)
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 14 Feb 3:54 pm EST
Extended Forecast for

Lake Hopatcong NJ

  • Tonight

    Tonight: Patchy freezing fog before midnight, then patchy freezing fog after 1am. Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Patchy
    Freezing Fog

  • Sunday

    Sunday: Patchy freezing fog before 9am. Mostly cloudy, with a high near 37. Calm wind becoming east around 5 mph.

    High: 37 °F

    Patchy
    Freezing Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Snow likely, mainly between 10pm and 4am. Cloudy, with a low around 26. Northeast wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Snow Likely

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 39. Northeast wind around 5 mph becoming calm in the morning.

    High: 39 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.

    High: 40 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.

    Low: 34 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy freezing fog before midnight, then patchy freezing fog after 1am. Partly cloudy, with a low around 23. Calm wind.
Sunday
Patchy freezing fog before 9am. Mostly cloudy, with a high near 37. Calm wind becoming east around 5 mph.
Sunday Night
Snow likely, mainly between 10pm and 4am. Cloudy, with a low around 26. Northeast wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Washington's Birthday
Mostly cloudy, with a high near 39. Northeast wind around 5 mph becoming calm in the morning.
Monday Night
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Thursday
A chance of rain. Partly sunny, with a high near 46. Chance of precipitation is 40%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.94°N 74.61°W (Elev. 928 ft)
Last Update:
4:17 pm EST Feb 14, 2026
Forecast Valid:
4pm EST Feb 14, 2026-6pm EST Feb 21, 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