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.

41°F

5°C

Humidity 57%
Wind Speed E 3 mph
Barometer 30.01 in (1017.1 mb)
Dewpoint 27°F (-3°C)
Visibility NA
Last update 19 Feb 2:54 pm EST
Extended Forecast for

4 Miles NE Lake Hopatcong NJ

  • Tonight

    Tonight: A slight chance of freezing rain between 4am and 5am, then a chance of snow, freezing rain, and sleet. Cloudy, with a low around 31. Northeast wind around 5 mph. Chance of precipitation is 30%. Little or no snow and sleet accumulation expected.

    Low: 31 °F

    Cloudy then
    Chance Wintry
    Mix

  • Friday

    Friday: Rain, snow and freezing rain, possibly mixed with sleet, becoming all rain after 1pm. Patchy fog. High near 35. East wind 5 to 10 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. Little or no snow and sleet accumulation expected.

    High: 35 °F

    Wintry Mix
    and Patchy
    Fog then Rain
    and Areas Fog

  • Friday Night

    Friday Night: A chance of rain, mixing with snow after 10pm, then gradually ending. Patchy fog before 7pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 31. East wind around 5 mph becoming west after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow and
    Patchy Fog

  • Saturday

    Saturday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 41. West wind around 5 mph. Chance of precipitation is 20%.

    High: 41 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 29. Northwest wind around 5 mph becoming east after midnight. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: Snow. High near 31. Chance of precipitation is 80%.

    High: 31 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.

    High: 34 °F

    Chance Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of freezing rain between 4am and 5am, then a chance of snow, freezing rain, and sleet. Cloudy, with a low around 31. Northeast wind around 5 mph. Chance of precipitation is 30%. Little or no snow and sleet accumulation expected.
Friday
Rain, snow and freezing rain, possibly mixed with sleet, becoming all rain after 1pm. Patchy fog. High near 35. East wind 5 to 10 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. Little or no snow and sleet accumulation expected.
Friday Night
A chance of rain, mixing with snow after 10pm, then gradually ending. Patchy fog before 7pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 31. East wind around 5 mph becoming west after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 41. West wind around 5 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 29. Northwest wind around 5 mph becoming east after midnight. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 31. Chance of precipitation is 80%.
Sunday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Thursday
A chance of rain. Partly sunny, with a high near 41. 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 74.54°W (Elev. 1237 ft)
Last Update:
2:22 pm EST Feb 19, 2026
Forecast Valid:
3pm EST Feb 19, 2026-6pm EST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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