S
M
T
W
T
F
S
30
78°
53°
31
81°
56°
1
82°
53°
2
78°
52°
3
77°
57°
4
83°
59°
5
83°
59°
6
82°
57°
7
77°
54°
8
76°
51°
9
79°
58°
10
80°
56°
11
77°
57°
12
78°
57°
13
80°
53°
14
74°
48°
15
72°
48°
16
73°
47°
17
73°
51°
18
76°
54°
19
79°
54°
20
80°
55°
21
72°
49°
22
77°
52°
23
71°
53°
24
78°
46°
25
70°
44°
26
Hist. Avg.
75°
49°
27
Hist. Avg.
75°
49°
28
Hist. Avg.
75°
49°
29
Hist. Avg.
74°
48°
30
Hist. Avg.
74°
48°
1
Hist. Avg.
73°
48°
2
Hist. Avg.
73°
47°
3
Hist. Avg.
73°
47°
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 70° to 83°, with overnight lows between 44° and 59°. The average high for September is 77° with an average low of 53°. 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.
