S
M
T
W
T
F
S
26
82°
57°
27
82°
57°
28
71°
61°
29
81°
64°
30
72°
58°
1
64°
55°
2
69°
46°
3
71°
41°
4
79°
43°
5
79°
49°
6
80°
66°
7
72°
58°
8
67°
54°
9
72°
56°
10
78°
61°
11
79°
62°
12
74°
59°
13
81°
54°
14
77°
50°
15
82°
54°
16
86°
63°
17
89°
67°
18
91°
69°
19
90°
66°
20
84°
64°
21
85°
62°
22
86°
63°
23
85°
65°
24
86°
65°
25
85°
65°
26
86°
64°
27
87°
64°
28
86°
62°
29
87°
66°
30
85°
64°
31
85°
63°
1
84°
65°
2
88°
66°
3
89°
66°
4
89°
67°
5
88°
68°
6
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valentine
Valentine's May 2026 forecast shows daily high temperatures ranging from 82° to 91°, with overnight lows between 54° and 69°. The average high for May is 87° with an average low of 65°. 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 Valentine. See also: June | July | August.
