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.

44°F

7°C

Humidity 37%
Wind Speed Vrbl 3 mph
Barometer 30.30 in (1027.0 mb)
Dewpoint 19°F (-7°C)
Visibility NA
Last update 24 Mar 6:54 pm EDT
Extended Forecast for

Sparta NJ

  • Tonight

    Tonight: Increasing clouds, with a low around 31. Calm wind.

    Low: 31 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 53 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 40. South wind around 5 mph.

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: A slight chance of rain after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 66 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Rain, mainly after 8pm. Low around 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain Likely
    then Rain

  • Friday

    Friday: Rain, mainly before 8am. High near 53. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 31. Calm wind.
Wednesday
Partly sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Cloudy, with a low around 40. South wind around 5 mph.
Thursday
A slight chance of rain after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Rain, mainly after 8pm. Low around 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 8am. High near 53. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 58.
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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:
4:09 pm EDT Mar 24, 2026
Forecast Valid:
7pm EDT Mar 24, 2026-6pm EDT Mar 31, 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