S
M
T
W
T
F
S
30
88°
60°
31
87°
62°
1
87°
61°
2
88°
57°
3
85°
56°
4
89°
57°
5
91°
62°
6
86°
60°
7
82°
53°
8
82°
51°
9
83°
55°
10
86°
56°
11
90°
56°
12
89°
54°
13
88°
58°
14
90°
59°
15
90°
56°
16
86°
53°
17
87°
55°
18
88°
58°
19
88°
56°
20
86°
56°
21
86°
57°
22
84°
56°
23
80°
55°
24
75°
55°
25
77°
54°
26
81°
52°
27
80°
53°
28
80°
54°
29
79°
54°
30
78°
53°
1
74°
53°
2
74°
49°
3
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Prescott
Prescott's September 2026 forecast shows daily high temperatures ranging from 72° to 91°, with overnight lows between 48° and 62°. The average high for September is 84° with an average low of 56°. 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. See also: October | November | December.
