Jefferson, NJ Weather Forecast
Morris County, New Jersey
Live radar, warnings and storm tracking for Jefferson, 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 Jefferson
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Jefferson, NJ at a glance
Jefferson is home to about 20,534 people in Morris County, across 39 square miles. It ranks 130th by population of 450 places in New Jersey with a forecast here. The nearest neighbour with its own forecast is Sparta, 5 miles away.
- County
- Morris County
- Population
- 20,534 2023 est.
- Land area
- 39 sq mi
- People per sq mi
- 527
- Forecast point
- 41.0013°N, 74.5512°W
How well can the network see Jefferson?
The nearest Doppler radar is KDIX (Philadelphia, PA), to the S. Its lowest scan passes about 6,100 ft above Jefferson. The beam is above the lowest few thousand feet here, so a warning for Jefferson 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 Jefferson
- Sparta, NJ5 mi
- Hopatcong, NJ7 mi
- Mount Arlington, NJ7 mi
- Wharton, NJ7 mi
- Rockaway, NJ7 mi
- Franklin, NJ8 mi
- Dover, NJ8 mi
- Denville, NJ8 mi
Elsewhere in New Jersey
NewarkJersey CityPatersonLakewoodElizabethEdisonAll New Jersey forecasts →