S
M
T
W
T
F
S
30
86°
66°
31
84°
61°
1
82°
60°
2
78°
61°
3
78°
61°
4
79°
62°
5
78°
60°
6
77°
60°
7
77°
61°
8
78°
62°
9
77°
61°
10
75°
59°
11
77°
59°
12
78°
61°
13
76°
60°
14
77°
59°
15
75°
60°
16
76°
58°
17
75°
57°
18
75°
58°
19
77°
61°
20
Hist. Avg.
76°
59°
21
Hist. Avg.
76°
59°
22
Hist. Avg.
76°
58°
23
Hist. Avg.
75°
58°
24
Hist. Avg.
75°
58°
25
Hist. Avg.
74°
57°
26
Hist. Avg.
74°
57°
27
Hist. Avg.
73°
56°
28
Hist. Avg.
73°
56°
29
Hist. Avg.
73°
56°
30
Hist. Avg.
72°
55°
1
Hist. Avg.
72°
55°
2
Hist. Avg.
71°
54°
3
Hist. Avg.
71°
54°
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 75° to 86°, with overnight lows between 57° and 66°. The average high for September is 78° with an average low of 60°. 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.
