S
M
T
W
T
F
S
30
79°
56°
31
78°
54°
1
78°
55°
2
77°
54°
3
76°
53°
4
75°
52°
5
75°
52°
6
76°
56°
7
76°
55°
8
78°
54°
9
76°
53°
10
76°
54°
11
77°
55°
12
76°
59°
13
76°
59°
14
81°
58°
15
82°
59°
16
81°
58°
17
79°
59°
18
81°
59°
19
82°
60°
20
81°
59°
21
81°
56°
22
80°
55°
23
79°
56°
24
78°
57°
25
79°
57°
26
79°
57°
27
75°
58°
28
73°
52°
29
73°
52°
30
Hist. Avg.
77°
55°
1
Hist. Avg.
77°
54°
2
Hist. Avg.
76°
54°
3
Hist. Avg.
76°
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 73° to 82°, with overnight lows between 52° and 60°. The average high for September is 78° with an average low of 56°. 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.
