S
M
T
W
T
F
S
30
76°
60°
31
66°
60°
1
80°
65°
2
74°
67°
3
80°
64°
4
76°
56°
5
73°
53°
6
69°
51°
7
72°
54°
8
70°
53°
9
74°
59°
10
73°
54°
11
68°
53°
12
67°
50°
13
68°
51°
14
69°
49°
15
67°
49°
16
69°
53°
17
71°
46°
18
63°
43°
19
64°
44°
20
69°
51°
21
73°
52°
22
73°
53°
23
72°
51°
24
72°
48°
25
71°
49°
26
71°
49°
27
72°
50°
28
71°
49°
29
70°
44°
30
62°
40°
1
60°
40°
2
66°
48°
3
69°
47°
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 80°, with overnight lows between 40° and 67°. The average high for September is 70° with an average low of 51°. 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.
