S
M
T
W
T
F
S
26
63°
50°
27
70°
50°
28
71°
46°
29
71°
46°
30
72°
49°
1
73°
51°
2
76°
45°
3
81°
52°
4
76°
54°
5
74°
50°
6
72°
52°
7
79°
46°
8
88°
51°
9
88°
57°
10
84°
57°
11
93°
52°
12
97°
58°
13
95°
63°
14
89°
62°
15
92°
62°
16
90°
64°
17
84°
59°
18
67°
46°
19
70°
47°
20
77°
50°
21
83°
51°
22
78°
58°
23
89°
54°
24
85°
60°
25
71°
53°
26
76°
54°
27
78°
54°
28
83°
55°
29
79°
55°
30
83°
58°
31
95°
62°
1
91°
65°
2
89°
63°
3
96°
65°
4
95°
63°
5
97°
60°
6
92°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monument Valley
Monument Valley's May 2026 forecast shows daily high temperatures ranging from 71° to 97°, with overnight lows between 53° and 65°. The average high for May is 86° with an average low of 59°. 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 Monument Valley. See also: June | July | August.
