S
M
T
W
T
F
S
30
92°
60°
31
95°
60°
1
94°
58°
2
93°
58°
3
92°
56°
4
91°
55°
5
91°
55°
6
90°
54°
7
90°
56°
8
91°
58°
9
91°
59°
10
92°
58°
11
93°
60°
12
90°
55°
13
89°
59°
14
Hist. Avg.
88°
64°
15
Hist. Avg.
87°
63°
16
Hist. Avg.
87°
63°
17
Hist. Avg.
87°
63°
18
Hist. Avg.
87°
63°
19
Hist. Avg.
86°
63°
20
Hist. Avg.
86°
63°
21
Hist. Avg.
86°
62°
22
Hist. Avg.
86°
62°
23
Hist. Avg.
85°
62°
24
Hist. Avg.
85°
62°
25
Hist. Avg.
85°
62°
26
Hist. Avg.
85°
62°
27
Hist. Avg.
84°
62°
28
Hist. Avg.
84°
61°
29
Hist. Avg.
84°
61°
30
Hist. Avg.
84°
61°
1
Hist. Avg.
84°
61°
2
Hist. Avg.
83°
60°
3
Hist. Avg.
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Valley Center
Valley Center's September 2026 forecast shows daily high temperatures ranging from 89° to 95°, with overnight lows between 54° and 60°. The average high for September is 92° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Valley Center. See also: October | November | December.
