S
M
T
W
T
F
S
30
91°
66°
31
90°
66°
1
87°
65°
2
89°
64°
3
91°
64°
4
90°
66°
5
90°
66°
6
91°
67°
7
91°
67°
8
89°
66°
9
85°
66°
10
87°
65°
11
86°
66°
12
87°
67°
13
88°
66°
14
91°
67°
15
90°
66°
16
89°
64°
17
87°
63°
18
86°
67°
19
85°
65°
20
Hist. Avg.
86°
62°
21
Hist. Avg.
85°
62°
22
Hist. Avg.
85°
62°
23
Hist. Avg.
85°
62°
24
Hist. Avg.
84°
62°
25
Hist. Avg.
84°
62°
26
Hist. Avg.
84°
62°
27
Hist. Avg.
84°
61°
28
Hist. Avg.
83°
61°
29
Hist. Avg.
83°
61°
30
Hist. Avg.
83°
61°
1
Hist. Avg.
82°
61°
2
Hist. Avg.
82°
61°
3
Hist. Avg.
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Valley Glen
Valley Glen's September 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 63° and 67°. The average high for September is 89° with an average low of 66°. 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 Glen. See also: October | November | December.
