S
M
T
W
T
F
S
26
67°
42°
27
70°
46°
28
61°
47°
29
51°
41°
30
54°
37°
1
46°
36°
2
51°
33°
3
61°
38°
4
76°
42°
5
60°
45°
6
55°
38°
7
55°
37°
8
63°
33°
9
66°
45°
10
59°
34°
11
60°
38°
12
63°
32°
13
54°
43°
14
67°
40°
15
71°
39°
16
79°
54°
17
85°
59°
18
84°
67°
19
79°
57°
20
65°
47°
21
62°
43°
22
71°
44°
23
60°
52°
24
66°
51°
25
80°
47°
26
82°
57°
27
84°
55°
28
74°
55°
29
78°
48°
30
73°
46°
31
77°
50°
1
79°
48°
2
78°
49°
3
81°
53°
4
81°
60°
5
82°
60°
6
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alto
Alto's May 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 46° and 60°. The average high for May is 79° with an average low of 53°. 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 Alto. See also: June | July | August.
