S
M
T
W
T
F
S
30
68°
48°
31
69°
49°
1
70°
55°
2
70°
58°
3
73°
57°
4
78°
57°
5
78°
54°
6
72°
47°
7
68°
47°
8
70°
50°
9
72°
46°
10
69°
47°
11
68°
47°
12
70°
46°
13
70°
53°
14
75°
53°
15
67°
51°
16
65°
49°
17
66°
51°
18
65°
50°
19
69°
43°
20
65°
46°
21
68°
42°
22
66°
42°
23
64°
41°
24
64°
41°
25
65°
47°
26
67°
40°
27
62°
49°
28
67°
46°
29
66°
39°
30
61°
43°
1
63°
47°
2
69°
45°
3
65°
38°
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 61° to 78°, with overnight lows between 38° and 58°. The average high for September is 68° 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.
