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.

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 29.58 in (1001.1 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 12 Mar 2:54 am EDT
Extended Forecast for

Sparta NJ

  • Overnight

    Overnight: Showers likely. Cloudy, with a steady temperature around 62. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain and sleet before noon, then a chance of rain and snow between noon and 1pm, then a chance of snow after 1pm. Temperature falling to around 37 by 2pm. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.

    High: 48 °F⇓

    Rain/Sleet
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Northwest wind 5 to 10 mph.

    Low: 26 °F

    Decreasing
    Clouds

  • Friday

    Friday: Increasing clouds, with a high near 45. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 45 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of rain before 2am. Partly cloudy, with a low around 33. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 47.

    High: 47 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Chance Rain
    then Rain

Detailed Forecast

Overnight
Showers likely. Cloudy, with a steady temperature around 62. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain and sleet before noon, then a chance of rain and snow between noon and 1pm, then a chance of snow after 1pm. Temperature falling to around 37 by 2pm. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow and sleet accumulation of less than one inch possible.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Northwest wind 5 to 10 mph.
Friday
Increasing clouds, with a high near 45. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A slight chance of rain before 2am. Partly cloudy, with a low around 33. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Cloudy, with a high near 47.
Sunday Night
Rain, mainly after 2am. Low around 40. Chance of precipitation is 80%.
Monday
Rain. High near 62. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta NJ
 41.05°N 74.62°W (Elev. 600 ft)
Last Update:
2:30 am EDT Mar 12, 2026
Forecast Valid:
3am EDT Mar 12, 2026-6pm EDT Mar 18, 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