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.

39°F

4°C

Humidity 53%
Wind Speed NA
Barometer 29.61 in (1004.1 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Last update 25 Feb 12:54 pm EST
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 40. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 25. Southwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow after 2pm. Increasing clouds, with a high near 37. Northwest wind around 5 mph. Chance of precipitation is 20%.

    High: 37 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Northwest wind around 5 mph becoming calm after midnight.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 40. Calm wind becoming south around 5 mph in the afternoon.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 40. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 25. Southwest wind around 5 mph, with gusts as high as 20 mph.
Thursday
A slight chance of snow after 2pm. Increasing clouds, with a high near 37. Northwest wind around 5 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 19. Northwest wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 40. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of snow before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Tuesday
A chance of snow. Cloudy, with a high near 31. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Lake Hopatcong NJ
 41°N 74.57°W (Elev. 1115 ft)
Last Update:
1:16 pm EST Feb 25, 2026
Forecast Valid:
1pm EST Feb 25, 2026-6pm EST Mar 3, 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