National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

-6°F

-21°C

Humidity 75%
Wind Speed Calm
Barometer 30.06 in (1020.2 mb)
Dewpoint -12°F (-24°C)
Visibility NA
Last update 29 Jan 5:54 am EST
Extended Forecast for

Sparta NJ

Cold Weather Advisory January 29, 05:58am until January 30, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 29, 05:58am until January 30, 10:00am

    NOW until 10:00am Fri

    Cold Weather Advisory

  • Today

    High: 19 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -1. Wind chill values as low as -13. Northwest wind around 10 mph.

    Low: -1 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 16. Wind chill values as low as -14. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 16 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -2. Wind chill values as low as -12. Northwest wind around 5 mph.

    Low: -2 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 20. North wind around 5 mph.

    High: 20 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 23.

    High: 23 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 19. Wind chill values as low as -13. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around -1. Wind chill values as low as -13. Northwest wind around 10 mph.
Friday
Sunny, with a high near 16. Wind chill values as low as -14. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around -2. Wind chill values as low as -12. Northwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 20. North wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
Mostly cloudy, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 30.
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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:
4:11 am EST Jan 29, 2026
Forecast Valid:
5am EST Jan 29, 2026-6pm EST Feb 4, 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