S
M
T
W
T
F
S
30
91°
70°
31
79°
61°
1
88°
63°
2
88°
70°
3
90°
68°
4
90°
68°
5
91°
66°
6
91°
72°
7
91°
68°
8
97°
72°
9
95°
79°
10
100°
73°
11
93°
68°
12
93°
66°
13
95°
70°
14
95°
70°
15
93°
67°
16
91°
68°
17
95°
66°
18
94°
63°
19
94°
61°
20
93°
63°
21
92°
62°
22
89°
61°
23
91°
61°
24
89°
62°
25
93°
60°
26
90°
49°
27
93°
57°
28
90°
56°
29
89°
55°
30
90°
55°
1
91°
54°
2
91°
55°
3
87°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Montezuma Castle National Monument
Montezuma Castle National Monument's September 2026 forecast shows daily high temperatures ranging from 87° to 95°, with overnight lows between 49° and 70°. The average high for September is 92° with an average low of 60°. 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 Montezuma Castle National Monument. See also: October | November | December.
