S
M
T
W
T
F
S
26
43°
35°
27
42°
36°
28
44°
32°
29
61°
29°
30
57°
32°
1
59°
26°
2
78°
28°
3
73°
43°
4
64°
42°
5
54°
36°
6
57°
29°
7
68°
29°
8
76°
38°
9
66°
39°
10
73°
36°
11
91°
41°
12
75°
46°
13
85°
38°
14
80°
57°
15
83°
46°
16
80°
57°
17
74°
41°
18
47°
37°
19
57°
39°
20
68°
43°
21
74°
49°
22
79°
54°
23
76°
56°
24
74°
54°
25
73°
52°
26
78°
55°
27
77°
54°
28
75°
50°
29
68°
49°
30
70°
55°
31
69°
54°
1
70°
56°
2
72°
58°
3
80°
59°
4
82°
61°
5
83°
59°
6
75°
59°
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 47° to 83°, with overnight lows between 37° and 61°. The average high for May is 73° with an average low of 52°. 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.
