National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

8°F

-13°C

Humidity 63%
Wind Speed SW 6 mph
Barometer 30.24 in (1025.8 mb)
Dewpoint -2°F (-19°C)
Visibility NA
Wind Chill-2°F (-19°C)
Last update 20 Jan 7:54 am EST
Extended Forecast for

2 Miles NNE Lake Hopatcong NJ

Cold Weather Advisory until January 20, 10:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory until January 20, 10:00am

    NOW until 10:00am Tue

    Cold Weather Advisory

  • Today

    High: 18 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 5. Wind chill values as low as -4. West wind 5 to 10 mph.

    Low: 5 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 28. Wind chill values as low as -4. South wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 28 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. Southwest wind 5 to 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 18. Wind chill values as low as -2. West wind 10 to 15 mph.
Tonight
Mostly clear, with a low around 5. Wind chill values as low as -4. West wind 5 to 10 mph.
Wednesday
Increasing clouds, with a high near 28. Wind chill values as low as -4. South wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 24. Southwest wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 38. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 5.
Saturday
Partly sunny, with a high near 13.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 5. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 15. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 5. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Lake Hopatcong NJ
 40.98°N 74.6°W (Elev. 997 ft)
Last Update:
4:11 am EST Jan 20, 2026
Forecast Valid:
8am EST Jan 20, 2026-6pm EST Jan 26, 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