S
M
T
W
T
F
S
30
75°
47°
31
75°
54°
1
80°
47°
2
81°
44°
3
74°
45°
4
75°
45°
5
80°
52°
6
81°
51°
7
79°
51°
8
79°
46°
9
75°
45°
10
78°
48°
11
80°
51°
12
80°
50°
13
82°
48°
14
78°
51°
15
80°
52°
16
81°
50°
17
74°
48°
18
75°
45°
19
70°
47°
20
78°
46°
21
78°
47°
22
77°
48°
23
76°
48°
24
75°
47°
25
75°
47°
26
72°
46°
27
74°
47°
28
76°
46°
29
75°
46°
30
75°
45°
1
71°
44°
2
74°
40°
3
66°
38°
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 66° to 82°, with overnight lows between 38° and 54°. The average high for September is 76° with an average low of 47°. 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.
