S
M
T
W
T
F
S
26
52°
45°
27
61°
41°
28
68°
41°
29
73°
41°
30
75°
46°
1
77°
48°
2
77°
54°
3
66°
50°
4
52°
48°
5
55°
48°
6
72°
43°
7
81°
50°
8
81°
46°
9
82°
50°
10
86°
55°
11
90°
55°
12
88°
57°
13
75°
48°
14
81°
48°
15
81°
50°
16
73°
50°
17
70°
45°
18
77°
46°
19
81°
48°
20
82°
48°
21
86°
54°
22
86°
52°
23
86°
52°
24
84°
51°
25
82°
47°
26
74°
49°
27
79°
50°
28
78°
54°
29
82°
55°
30
88°
54°
31
87°
56°
1
90°
57°
2
95°
58°
3
93°
60°
4
90°
59°
5
85°
55°
6
88°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Montezuma
Montezuma's May 2026 forecast shows daily high temperatures ranging from 74° to 95°, with overnight lows between 47° and 60°. The average high for May is 85° 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 May weather will actually feel in Montezuma. See also: June | July | August.