S
M
T
W
T
F
S
26
79°
58°
27
79°
58°
28
78°
57°
29
78°
57°
30
79°
58°
31
80°
57°
1
82°
57°
2
82°
56°
3
80°
57°
4
81°
57°
5
83°
58°
6
84°
57°
7
81°
57°
8
79°
56°
9
80°
55°
10
85°
58°
11
84°
54°
12
83°
54°
13
78°
53°
14
80°
56°
15
84°
55°
16
85°
58°
17
85°
54°
18
86°
49°
19
76°
50°
20
77°
50°
21
78°
52°
22
82°
52°
23
84°
50°
24
79°
51°
25
81°
51°
26
79°
52°
27
82°
52°
28
79°
53°
29
81°
52°
30
82°
56°
31
82°
55°
1
80°
49°
2
77°
52°
3
76°
51°
4
77°
50°
5
77°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Montezuma
Montezuma's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 49° and 58°. The average high for August is 81° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Montezuma. See also: September | October | November.