S
M
T
W
T
F
S
30
89°
70°
31
91°
68°
1
93°
68°
2
95°
70°
3
97°
72°
4
95°
70°
5
93°
70°
6
95°
72°
7
88°
70°
8
90°
72°
9
91°
64°
10
91°
68°
11
88°
70°
12
90°
72°
13
93°
70°
14
95°
64°
15
95°
68°
16
91°
70°
17
91°
63°
18
95°
63°
19
93°
68°
20
90°
66°
21
91°
64°
22
90°
68°
23
84°
69°
24
71°
63°
25
N/A
26
82°
55°
27
84°
53°
28
84°
52°
29
85°
50°
30
89°
56°
1
87°
61°
2
85°
67°
3
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Valley
Valley's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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. See also: October | November | December.
