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.

35°F

2°C

Humidity 96%
Wind Speed Calm
Barometer 30.29 in (1026.4 mb)
Dewpoint 34°F (1°C)
Visibility NA
Last update 7 Mar 3:54 am EST
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

  • Overnight

    Overnight: Areas of fog. Otherwise, cloudy, with a low around 32. South wind around 5 mph.

    Low: 32 °F

    Areas Fog

  • Saturday

    Saturday: Areas of dense fog before noon. Otherwise, mostly cloudy, with a high near 45. South wind around 5 mph.

    High: 45 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly between 9pm and 2am. Cloudy, with a temperature rising to around 54 by 4am. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F⇑

    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 61. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. West wind 5 to 10 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Areas of fog. Otherwise, cloudy, with a low around 32. South wind around 5 mph.
Saturday
Areas of dense fog before noon. Otherwise, mostly cloudy, with a high near 45. South wind around 5 mph.
Saturday Night
Showers likely, mainly between 9pm and 2am. Cloudy, with a temperature rising to around 54 by 4am. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 61. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 39. West wind 5 to 10 mph.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Cloudy, with a high near 68. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Cloudy, with a low around 46. Breezy. Chance of precipitation is 70%.
Thursday
A chance of showers. Cloudy, with a high near 54. Breezy. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 26. Blustery.
Friday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Lake Hopatcong NJ
 41°N 74.54°W (Elev. 1237 ft)
Last Update:
4:09 am EST Mar 7, 2026
Forecast Valid:
4am EST Mar 7, 2026-6pm EDT Mar 13, 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