S
M
T
W
T
F
S
30
88°
71°
31
91°
71°
1
94°
71°
2
96°
71°
3
95°
72°
4
92°
72°
5
92°
75°
6
97°
72°
7
90°
70°
8
91°
69°
9
89°
72°
10
87°
71°
11
89°
72°
12
90°
69°
13
89°
70°
14
87°
69°
15
86°
67°
16
87°
67°
17
87°
66°
18
88°
66°
19
87°
65°
20
85°
62°
21
88°
66°
22
87°
65°
23
88°
65°
24
87°
64°
25
87°
65°
26
86°
65°
27
87°
64°
28
87°
65°
29
86°
64°
30
86°
64°
1
85°
63°
2
85°
62°
3
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Montezuma
Montezuma's September 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 61° and 72°. The average high for September is 87° with an average low of 66°. 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. See also: October | November | December.
