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

Dangerous Cold Will Continue Through Monday Morning

Very cold air and breezy conditions will lead to dangerously cold wind chills through Monday morning. Please see the current briefing for full details. Read More >

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

13°F

-11°C

Humidity 42%
Wind Speed Vrbl 7 G 20 mph
Barometer 30.20 in (1024.9 mb)
Dewpoint -6°F (-21°C)
Visibility NA
Wind Chill3°F (-16°C)
Last update 8 Feb 4:54 pm EST
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

Cold Weather Advisory February 8, 05:11pm until February 9, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 8, 05:11pm until February 9, 10:00am

    NOW until 10:00am Mon

    Cold Weather Advisory

  • Tonight

    Low: 3 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 25. Wind chill values as low as -12. Northwest wind 5 to 15 mph.

    High: 25 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.

    Low: 12 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow after 1pm. Mostly cloudy, with a high near 31. Calm wind becoming south around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 31 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. Southwest wind around 5 mph becoming west after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Tonight
Clear, with a low around 3. Wind chill values as low as -15. Northwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 25. Wind chill values as low as -12. Northwest wind 5 to 15 mph.
Monday Night
Mostly cloudy, with a low around 12. Northwest wind around 5 mph becoming calm.
Tuesday
A chance of snow after 1pm. Mostly cloudy, with a high near 31. Calm wind becoming south around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday Night
Mostly cloudy, with a low around 24. Southwest wind around 5 mph becoming west after midnight.
Wednesday
Partly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
Partly sunny, with a high near 30.
Thursday Night
Mostly clear, with a low around 15.
Friday
Mostly sunny, with a high near 30.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
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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:
4:14 pm EST Feb 8, 2026
Forecast Valid:
5pm EST Feb 8, 2026-6pm EST Feb 15, 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