S
M
T
W
T
F
S
26
59°
50°
27
64°
49°
28
71°
46°
29
75°
47°
30
74°
46°
1
75°
46°
2
59°
50°
3
65°
53°
4
62°
46°
5
63°
50°
6
72°
53°
7
72°
50°
8
71°
48°
9
75°
47°
10
72°
51°
11
79°
47°
12
79°
50°
13
69°
54°
14
78°
47°
15
75°
53°
16
73°
50°
17
76°
61°
18
78°
56°
19
81°
55°
20
85°
52°
21
77°
51°
22
71°
50°
23
73°
51°
24
74°
50°
25
73°
52°
26
76°
51°
27
78°
52°
28
75°
51°
29
70°
48°
30
71°
48°
31
74°
51°
1
75°
52°
2
78°
54°
3
79°
52°
4
71°
50°
5
74°
52°
6
78°
50°
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 70° to 85°, with overnight lows between 48° and 61°. The average high for May is 75° with an average low of 52°. 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.
