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