S
M
T
W
T
F
S
30
83°
60°
31
86°
59°
1
85°
62°
2
87°
56°
3
81°
56°
4
81°
57°
5
82°
57°
6
84°
58°
7
86°
58°
8
87°
57°
9
86°
59°
10
87°
59°
11
85°
58°
12
86°
59°
13
85°
60°
14
86°
53°
15
84°
58°
16
83°
57°
17
79°
54°
18
78°
55°
19
78°
56°
20
77°
53°
21
76°
51°
22
78°
51°
23
80°
53°
24
79°
54°
25
83°
51°
26
83°
54°
27
82°
53°
28
81°
47°
29
78°
48°
30
79°
53°
1
81°
55°
2
83°
54°
3
82°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Prescott Valley
Prescott Valley's September 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 47° and 62°. The average high for September is 82° with an average low of 55°. 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 Prescott Valley. See also: October | November | December.
