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.

45°F

7°C

Humidity 74%
Wind Speed Calm
Barometer 30.22 in (1024.2 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 4 Mar 2:54 pm EST
Extended Forecast for

Sparta NJ

  • Tonight

    Tonight: A chance of rain, mainly after 5am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Patchy Fog
    then Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Showers. Patchy fog before 1pm. High near 45. Calm wind becoming east around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers. Patchy fog after 1am. Low around 36. Calm wind becoming east around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 1pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 44. Calm wind becoming northeast around 5 mph. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A slight chance of showers after 1am. Cloudy, with a low around 37. Calm wind. Chance of precipitation is 20%.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.

    High: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely before 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain, mainly after 5am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers. Patchy fog before 1pm. High near 45. Calm wind becoming east around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers. Patchy fog after 1am. Low around 36. Calm wind becoming east around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers before 1pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 44. Calm wind becoming northeast around 5 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers after 1am. Cloudy, with a low around 37. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
Saturday Night
Showers likely before 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sparta NJ
 41.05°N 74.62°W (Elev. 600 ft)
Last Update:
4:10 am EST Mar 4, 2026
Forecast Valid:
3pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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