S
M
T
W
T
F
S
30
98°
66°
31
99°
64°
1
97°
62°
2
94°
60°
3
95°
64°
4
97°
62°
5
95°
59°
6
94°
58°
7
93°
58°
8
92°
63°
9
90°
60°
10
89°
55°
11
90°
54°
12
89°
60°
13
89°
60°
14
88°
58°
15
88°
52°
16
86°
51°
17
85°
52°
18
86°
52°
19
86°
53°
20
87°
52°
21
85°
54°
22
86°
55°
23
87°
57°
24
89°
57°
25
91°
55°
26
90°
57°
27
90°
58°
28
91°
57°
29
91°
57°
30
90°
56°
1
91°
56°
2
90°
55°
3
90°
54°
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 85° to 99°, with overnight lows between 51° and 66°. The average high for September is 91° 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 Apple Valley. See also: October | November | December.
