S
M
T
W
T
F
S
30
89°
60°
31
88°
57°
1
89°
59°
2
90°
61°
3
91°
61°
4
89°
57°
5
87°
60°
6
88°
59°
7
84°
57°
8
82°
52°
9
82°
52°
10
83°
53°
11
85°
53°
12
86°
52°
13
87°
56°
14
88°
58°
15
87°
57°
16
84°
51°
17
83°
51°
18
83°
50°
19
80°
50°
20
85°
48°
21
85°
56°
22
84°
55°
23
81°
54°
24
76°
55°
25
75°
54°
26
76°
46°
27
75°
49°
28
77°
48°
29
77°
50°
30
82°
52°
1
82°
53°
2
Hist. Avg.
78°
46°
3
Hist. Avg.
77°
45°
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 75° to 91°, with overnight lows between 46° and 61°. The average high for September is 84° with an average low of 54°. 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.
