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.

29°F

-2°C

Humidity 85%
Wind Speed Calm
Barometer 30.36 in (1028.8 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Last update 25 Mar 4:54 am EDT
Extended Forecast for

Sparta NJ

  • Today

    Today: Partly sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. South wind around 5 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers after 2pm. Partly sunny, with a high near 67. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 8pm. Low around 47. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers, mainly before 8am. High near 48. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Showers then
    Chance
    Showers

  • Friday Night

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

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Increasing clouds, with a low around 40. South wind around 5 mph.
Thursday
A slight chance of showers after 2pm. Partly sunny, with a high near 67. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
Showers, mainly after 8pm. Low around 47. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, mainly before 8am. High near 48. North wind around 10 mph, with gusts as high as 25 mph. 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 42.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Partly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 61.
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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 am EDT Mar 25, 2026
Forecast Valid:
5am EDT Mar 25, 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