S
M
T
W
T
F
S
26
64°
48°
27
66°
45°
28
73°
45°
29
79°
48°
30
77°
52°
1
77°
55°
2
82°
55°
3
82°
59°
4
70°
55°
5
68°
48°
6
75°
45°
7
84°
55°
8
91°
57°
9
91°
63°
10
95°
68°
11
95°
66°
12
97°
70°
13
86°
66°
14
86°
57°
15
88°
61°
16
91°
57°
17
87°
55°
18
82°
49°
19
86°
53°
20
91°
54°
21
96°
57°
22
93°
57°
23
91°
56°
24
90°
55°
25
91°
57°
26
94°
57°
27
93°
56°
28
95°
57°
29
93°
50°
30
86°
55°
31
93°
54°
1
96°
56°
2
98°
57°
3
98°
57°
4
97°
58°
5
99°
58°
6
99°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lake Montezuma
Lake Montezuma's May 2026 forecast shows daily high temperatures ranging from 82° to 99°, with overnight lows between 49° and 58°. The average high for May is 93° with an average low of 56°. 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 Lake Montezuma. See also: June | July | August.