NimbocastSparta, NJ Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Sparta, Sussex County, New Jersey.
Updated Jul 29, 2026, 5:08 PM local time · Radar refreshes every 5 minutes
🌤️
Sparta
74°F
Wind 4 mph
Humidity 82%
Cloud cover 47%
UV index 7
Alerts 0
Active alerts
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No active National Weather Service alerts for Sparta, NJ.
Sparta weather radar
Light
Heavy
Next 24 hours
Now
🌧️
74°F
18%
6 PM
🌧️
72°F
18%
7 PM
☁️
72°F
9%
8 PM
☁️
70°F
12%
9 PM
🌦️
68°F
13%
10 PM
☁️
68°F
23%
11 PM
⛅
67°F
32%
12 AM
☁️
66°F
25%
1 AM
☁️
66°F
26%
2 AM
☁️
66°F
19%
3 AM
🌤️
66°F
8%
4 AM
☁️
65°F
11%
5 AM
☁️
65°F
9%
6 AM
🌦️
65°F
6%
7 AM
☁️
65°F
9%
8 AM
☁️
65°F
11%
9 AM
🌦️
66°F
9%
10 AM
☁️
68°F
5%
11 AM
☁️
70°F
8%
12 PM
☁️
71°F
15%
1 PM
☁️
69°F
11%
2 PM
⛅
70°F
10%
3 PM
☁️
73°F
15%
4 PM
🌤️
73°F
14%
7-day forecast
Today
Jul 29
🌧️
77°F
67°F
70%
Thu
Jul 30
🌦️
74°F
65°F
32%
Fri
Jul 31
☁️
85°F
62°F
7%
Sat
Aug 1
☁️
85°F
61°F
2%
Sun
Aug 2
🌦️
85°F
65°F
52%
Mon
Aug 3
🌧️
78°F
61°F
46%
Tue
Aug 4
☁️
85°F
55°F
11%
Weather near Sparta
6 mi
Hopatcong Hills, NJ11 mi
Dover, NJ13 mi
Randolph, NJ13 mi
Denville, NJ16 mi
Parsippany, NJ16 mi
West Milford, NJ18 mi
Morristown, NJ20 mi
Wayne, NJ
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
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broadcasts.