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.

21°F

-6°C

Humidity 43%
Wind Speed NW 10 G 20 mph
Barometer 29.56 in (1002.3 mb)
Dewpoint 2°F (-17°C)
Visibility NA
Wind Chill10°F (-12°C)
Last update 15 Jan 10:54 pm EST
Extended Forecast for

Sparta NJ

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. West wind around 15 mph, with gusts as high as 30 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow, mainly between 1am and 4am. Increasing clouds, with a low around 24. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 24 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow and freezing rain before 10am. Mostly cloudy, with a high near 32. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Wintry Mix
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 18. West wind around 15 mph, with gusts as high as 30 mph.
Friday
Mostly sunny, with a high near 32. West wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
A chance of snow, mainly between 1am and 4am. Increasing clouds, with a low around 24. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 25. Calm wind.
Sunday
A slight chance of snow and freezing rain before 10am. Mostly cloudy, with a high near 32. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 19.
Tuesday Night
Partly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 26.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sparta NJ
 41.05°N 74.62°W (Elev. 600 ft)
Last Update:
5:51 pm EST Jan 15, 2026
Forecast Valid:
11pm EST Jan 15, 2026-6pm EST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation