S
M
T
W
T
F
S
30
71°
50°
31
72°
49°
1
64°
42°
2
65°
39°
3
62°
41°
4
63°
49°
5
70°
50°
6
66°
49°
7
68°
49°
8
69°
50°
9
67°
45°
10
67°
38°
11
59°
35°
12
56°
37°
13
57°
37°
14
59°
40°
15
61°
41°
16
58°
40°
17
56°
36°
18
56°
37°
19
57°
37°
20
56°
38°
21
57°
37°
22
56°
38°
23
57°
37°
24
57°
41°
25
60°
38°
26
63°
34°
27
56°
35°
28
57°
36°
29
61°
33°
30
60°
32°
1
53°
32°
2
57°
35°
3
58°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cottonwood
Cottonwood's September 2026 forecast shows daily high temperatures ranging from 53° to 72°, with overnight lows between 32° and 50°. The average high for September is 61° with an average low of 40°. 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 Cottonwood. See also: October | November | December.
