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.

58°F

14°C

Humidity 50%
Wind Speed SW 8 G 17 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 39°F (4°C)
Visibility NA
Last update 26 Mar 10:54 am EDT
Extended Forecast for

Sparta NJ

  • Today

    Today: A chance of showers, mainly after 5pm. Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Showers, mainly after 11pm. Low around 45. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers likely, mainly before noon. Mostly cloudy, with a high near 49. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Sunny, with a high near 40. Northwest wind around 10 mph, with gusts as high as 25 mph.

    High: 40 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers, mainly after 5pm. Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly after 11pm. Low around 45. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly before noon. Mostly cloudy, with a high near 49. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 40. Northwest wind around 10 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 58.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta NJ
 41.05°N 74.62°W (Elev. 600 ft)
Last Update:
4:10 am EDT Mar 26, 2026
Forecast Valid:
10am EDT Mar 26, 2026-6pm EDT Apr 1, 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