S
M
T
W
T
F
S
30
75°
54°
31
77°
54°
1
78°
53°
2
77°
49°
3
67°
45°
4
64°
41°
5
67°
41°
6
65°
42°
7
67°
49°
8
69°
52°
9
76°
51°
10
76°
46°
11
71°
41°
12
63°
43°
13
64°
43°
14
66°
51°
15
73°
52°
16
73°
51°
17
72°
51°
18
74°
50°
19
74°
48°
20
72°
38°
21
67°
42°
22
58°
37°
23
59°
38°
24
63°
47°
25
65°
43°
26
68°
39°
27
61°
34°
28
56°
35°
29
57°
36°
30
58°
36°
1
60°
41°
2
61°
44°
3
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Deep River
Deep River's September 2026 forecast shows daily high temperatures ranging from 56° to 78°, with overnight lows between 34° and 54°. The average high for September is 67° with an average low of 45°. 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 Deep River. See also: October | November | December.
