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.

49°F

9°C

Humidity 97%
Wind Speed Vrbl 5 mph
Barometer 29.77 in (1008.4 mb)
Dewpoint 48°F (9°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 8 Mar 4:54 am EDT
Extended Forecast for

Sparta NJ

  • Overnight

    Overnight: A chance of showers. Patchy fog. Otherwise, cloudy, with a steady temperature around 52. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 65. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. West wind around 5 mph becoming calm after midnight.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Southwest wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers before 2pm. Cloudy, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers after 8pm. Cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

Detailed Forecast

Overnight
A chance of showers. Patchy fog. Otherwise, cloudy, with a steady temperature around 52. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 65. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 40. West wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 66. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A chance of showers before 2pm. Cloudy, with a high near 70. Chance of precipitation is 30%.
Wednesday Night
A chance of showers after 8pm. Cloudy, with a low around 57. Chance of precipitation is 50%.
Thursday
Rain showers likely before 2pm, then a chance of rain and snow showers. Cloudy, with a high near 58. Chance of precipitation is 70%.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 46.
Friday Night
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 48.
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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 8, 2026
Forecast Valid:
5am EDT Mar 8, 2026-6pm EDT Mar 14, 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