S
M
T
W
T
F
S
26
84°
71°
27
85°
74°
28
87°
73°
29
77°
64°
30
64°
58°
1
58°
52°
2
74°
52°
3
79°
57°
4
80°
56°
5
84°
66°
6
76°
55°
7
67°
52°
8
74°
65°
9
83°
66°
10
86°
63°
11
78°
56°
12
83°
60°
13
87°
62°
14
88°
65°
15
85°
67°
16
86°
66°
17
83°
69°
18
84°
69°
19
85°
67°
20
86°
68°
21
83°
63°
22
81°
67°
23
79°
66°
24
80°
67°
25
80°
67°
26
81°
66°
27
80°
67°
28
81°
67°
29
80°
68°
30
81°
66°
31
81°
66°
1
82°
67°
2
83°
67°
3
84°
68°
4
82°
69°
5
83°
70°
6
85°
69°
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 74° to 88°, with overnight lows between 56° and 70°. The average high for May is 82° with an average low of 66°. 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.
