Sparta, NJ Weather Forecast
Sussex County, New Jersey
Live radar, warnings and storm tracking for Sparta, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Sparta
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Sparta, NJ at a glance
Sparta is home to about 20,195 people in Sussex County, across 37 square miles. It ranks 133rd by population of 450 places in New Jersey with a forecast here. The nearest neighbour with its own forecast is Franklin, 4 miles away.
- County
- Sussex County
- Population
- 20,195 2023 est.
- Land area
- 37 sq mi
- People per sq mi
- 550
- Forecast point
- 41.0523°N, 74.6279°W
How well can the network see Sparta?
The nearest Doppler radar is KDIX (Philadelphia, PA), to the S. Its lowest scan passes about 6,500 ft above Sparta. The beam is above the lowest few thousand feet here, so a warning for Sparta can come before anything looks dramatic on radar.
The closest weather station is K12N (Andover/Aeroflex Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Sparta
- Franklin, NJ4 mi
- Jefferson, NJ5 mi
- Hardyston, NJ6 mi
- Newton, NJ7 mi
- Hopatcong, NJ7 mi
- Hamburg, NJ7 mi
- Byram, NJ8 mi
- Hampton, NJ9 mi
Elsewhere in New Jersey
NewarkJersey CityPatersonLakewoodElizabethEdisonAll New Jersey forecasts →

