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.

33°F

1°C

Humidity 96%
Wind Speed Calm
Barometer 29.48 in (999.2 mb)
Dewpoint 32°F (0°C)
Visibility NA
Last update 29 Dec 5:54 am EST
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

Wind Advisory December 29, 10:00am until December 30, 01:00pm
Dense Fog Advisory December 29, 06:44am until December 29, 10:00am
Click here for hazard details and duration
Wind Advisory
...
  •  
    Dense Fog Advisory December 29, 06:44am until December 29, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Today

    High: 45 °F

    Showers and
    Areas Fog
    then Slight
    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.

    Low: 22 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 27. West wind around 15 mph, with gusts as high as 45 mph.

    High: 27 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow after 1pm. Partly sunny, with a high near 30. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 30 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.

    Low: 16 °F

    Chance Snow

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Today
Showers, mainly before noon. Areas of fog before 10am. High near 45. Breezy, with a south wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Mostly cloudy, with a low around 22. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.
Tuesday
Mostly cloudy, with a high near 27. West wind around 15 mph, with gusts as high as 45 mph.
Tuesday Night
Mostly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
A slight chance of snow after 1pm. Partly sunny, with a high near 30. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
New Year's Day
Mostly sunny, with a high near 23.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Mostly sunny, with a high near 23.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Partly sunny, with a high near 28.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 27.
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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:
5:47 am EST Dec 29, 2025
Forecast Valid:
6am EST Dec 29, 2025-6pm EST Jan 4, 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