S
M
T
W
T
F
S
30
76°
60°
31
66°
60°
1
78°
65°
2
69°
64°
3
79°
64°
4
75°
62°
5
72°
58°
6
71°
54°
7
73°
51°
8
75°
52°
9
73°
61°
10
78°
61°
11
72°
48°
12
75°
64°
13
79°
54°
14
65°
44°
15
71°
56°
16
76°
60°
17
73°
53°
18
67°
50°
19
64°
47°
20
63°
45°
21
63°
45°
22
65°
46°
23
67°
50°
24
68°
45°
25
60°
40°
26
62°
45°
27
68°
49°
28
68°
44°
29
61°
39°
30
64°
49°
1
66°
45°
2
61°
42°
3
66°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newark Valley
Newark Valley's September 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 39° and 64°. The average high for September is 67° with an average low of 48°. 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 Valley. See also: October | November | December.
