S
M
T
W
T
F
S
26
48°
28°
27
52°
38°
28
52°
38°
29
48°
42°
30
52°
41°
1
57°
39°
2
47°
44°
3
50°
36°
4
58°
35°
5
57°
42°
6
51°
40°
7
55°
38°
8
50°
34°
9
54°
45°
10
47°
44°
11
49°
41°
12
60°
39°
13
50°
41°
14
49°
42°
15
57°
40°
16
60°
41°
17
50°
43°
18
50°
42°
19
49°
41°
20
47°
44°
21
54°
44°
22
47°
41°
23
52°
38°
24
53°
34°
25
67°
34°
26
53°
43°
27
48°
42°
28
48°
40°
29
51°
39°
30
53°
40°
31
53°
39°
1
63°
39°
2
72°
45°
3
71°
49°
4
54°
43°
5
58°
45°
6
58°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mendenhall Valley
Mendenhall Valley's May 2026 forecast shows daily high temperatures ranging from 48° to 72°, with overnight lows between 39° and 49°. The average high for May is 58° with an average low of 43°. 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 Mendenhall Valley. See also: June | July | August.
