S
M
T
W
T
F
S
30
84°
62°
31
81°
63°
1
78°
64°
2
78°
65°
3
79°
66°
4
80°
62°
5
83°
63°
6
79°
62°
7
78°
61°
8
77°
62°
9
77°
60°
10
79°
64°
11
80°
64°
12
76°
65°
13
81°
65°
14
82°
64°
15
Hist. Avg.
77°
62°
16
Hist. Avg.
77°
61°
17
Hist. Avg.
77°
61°
18
Hist. Avg.
76°
61°
19
Hist. Avg.
76°
60°
20
Hist. Avg.
76°
60°
21
Hist. Avg.
76°
60°
22
Hist. Avg.
75°
59°
23
Hist. Avg.
75°
59°
24
Hist. Avg.
75°
58°
25
Hist. Avg.
74°
58°
26
Hist. Avg.
74°
58°
27
Hist. Avg.
74°
57°
28
Hist. Avg.
73°
57°
29
Hist. Avg.
73°
56°
30
Hist. Avg.
73°
56°
1
Hist. Avg.
72°
56°
2
Hist. Avg.
72°
55°
3
Hist. Avg.
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Newark
Newark's September 2026 forecast shows daily high temperatures ranging from 76° to 84°, with overnight lows between 60° and 66°. The average high for September is 80° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Newark. See also: October | November | December.
