S
M
T
W
T
F
S
30
89°
72°
31
84°
69°
1
79°
65°
2
84°
54°
3
86°
52°
4
85°
52°
5
90°
61°
6
78°
59°
7
90°
64°
8
94°
66°
9
92°
66°
10
91°
64°
11
92°
61°
12
88°
59°
13
87°
60°
14
89°
61°
15
92°
58°
16
94°
62°
17
94°
61°
18
85°
54°
19
87°
57°
20
89°
59°
21
91°
59°
22
90°
58°
23
88°
60°
24
87°
56°
25
88°
59°
26
90°
59°
27
89°
58°
28
87°
58°
29
89°
57°
30
88°
58°
1
89°
57°
2
88°
57°
3
87°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Apple Valley
Apple Valley's September 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 52° and 66°. The average high for September is 89° with an average low of 59°. 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 Apple Valley. See also: October | November | December.
