S
M
T
W
T
F
S
30
86°
60°
31
87°
60°
1
80°
57°
2
86°
60°
3
82°
59°
4
78°
61°
5
79°
60°
6
84°
62°
7
83°
62°
8
83°
62°
9
82°
59°
10
79°
60°
11
86°
63°
12
86°
62°
13
79°
57°
14
73°
55°
15
71°
56°
16
72°
57°
17
74°
54°
18
76°
55°
19
74°
54°
20
73°
52°
21
70°
48°
22
70°
46°
23
71°
47°
24
70°
46°
25
70°
48°
26
71°
49°
27
70°
49°
28
69°
46°
29
68°
40°
30
69°
38°
1
65°
37°
2
66°
37°
3
65°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Capitan
Capitan's September 2026 forecast shows daily high temperatures ranging from 65° to 86°, with overnight lows between 37° and 63°. The average high for September is 74° 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 Capitan. See also: October | November | December.
