S
M
T
W
T
F
S
26
70°
61°
27
74°
52°
28
64°
43°
29
64°
40°
30
65°
40°
1
68°
37°
2
68°
40°
3
86°
46°
4
86°
61°
5
66°
46°
6
61°
43°
7
76°
45°
8
77°
54°
9
86°
52°
10
72°
51°
11
79°
47°
12
88°
57°
13
81°
54°
14
88°
61°
15
89°
64°
16
93°
64°
17
89°
70°
18
91°
54°
19
60°
49°
20
65°
50°
21
70°
55°
22
77°
59°
23
74°
54°
24
84°
50°
25
85°
59°
26
84°
61°
27
82°
61°
28
72°
67°
29
84°
68°
30
88°
67°
31
92°
67°
1
94°
64°
2
79°
65°
3
81°
64°
4
79°
67°
5
83°
65°
6
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valley Center
Valley Center's May 2026 forecast shows daily high temperatures ranging from 79° to 94°, with overnight lows between 64° and 67°. The average high for May is 85° 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 Valley Center. See also: June | July | August.