S
M
T
W
T
F
S
26
44°
33°
27
36°
31°
28
46°
28°
29
50°
31°
30
51°
32°
1
57°
29°
2
63°
35°
3
64°
44°
4
61°
44°
5
46°
37°
6
51°
30°
7
63°
39°
8
64°
46°
9
62°
47°
10
70°
43°
11
76°
46°
12
80°
58°
13
73°
59°
14
64°
46°
15
67°
49°
16
57°
42°
17
38°
28°
18
36°
25°
19
44°
26°
20
50°
29°
21
55°
38°
22
58°
42°
23
62°
44°
24
64°
43°
25
62°
45°
26
62°
42°
27
55°
41°
28
59°
42°
29
65°
45°
30
58°
37°
31
51°
32°
1
55°
37°
2
58°
37°
3
60°
38°
4
62°
42°
5
65°
44°
6
63°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alta
Alta's May 2026 forecast shows daily high temperatures ranging from 36° to 65°, with overnight lows between 25° and 45°. The average high for May is 56° with an average low of 38°. 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 Alta. See also: June | July | August.
