S
M
T
W
T
F
S
30
88°
60°
31
82°
60°
1
81°
61°
2
81°
60°
3
82°
65°
4
81°
59°
5
85°
60°
6
81°
59°
7
80°
58°
8
79°
59°
9
80°
58°
10
83°
63°
11
83°
64°
12
78°
63°
13
78°
63°
14
77°
56°
15
76°
55°
16
Hist. Avg.
79°
59°
17
Hist. Avg.
78°
59°
18
Hist. Avg.
78°
59°
19
Hist. Avg.
78°
58°
20
Hist. Avg.
77°
58°
21
Hist. Avg.
77°
58°
22
Hist. Avg.
76°
57°
23
Hist. Avg.
76°
57°
24
Hist. Avg.
76°
56°
25
Hist. Avg.
75°
56°
26
Hist. Avg.
75°
55°
27
Hist. Avg.
74°
55°
28
Hist. Avg.
74°
55°
29
Hist. Avg.
74°
54°
30
Hist. Avg.
73°
54°
1
Hist. Avg.
73°
53°
2
Hist. Avg.
72°
53°
3
Hist. Avg.
72°
52°
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 88°, with overnight lows between 55° and 65°. The average high for September is 81° 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.
