S
M
T
W
T
F
S
30
89°
66°
31
83°
63°
1
83°
57°
2
87°
63°
3
93°
71°
4
85°
68°
5
86°
66°
6
78°
68°
7
83°
67°
8
86°
58°
9
79°
55°
10
82°
65°
11
87°
53°
12
73°
49°
13
63°
56°
14
72°
50°
15
67°
48°
16
66°
51°
17
69°
48°
18
71°
50°
19
72°
48°
20
69°
49°
21
70°
51°
22
69°
50°
23
71°
45°
24
77°
52°
25
76°
52°
26
75°
51°
27
75°
53°
28
74°
52°
29
72°
50°
30
72°
48°
1
64°
49°
2
71°
48°
3
69°
49°
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 63° to 87°, with overnight lows between 45° and 65°. The average high for September is 72° 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 Cottonwood. See also: October | November | December.
