S
M
T
W
T
F
S
30
98°
61°
31
100°
67°
1
101°
70°
2
99°
70°
3
98°
70°
4
101°
71°
5
103°
72°
6
105°
73°
7
102°
73°
8
104°
69°
9
100°
71°
10
100°
70°
11
96°
72°
12
101°
69°
13
99°
68°
14
102°
72°
15
102°
70°
16
101°
71°
17
101°
70°
18
99°
67°
19
99°
69°
20
96°
73°
21
96°
71°
22
89°
65°
23
85°
64°
24
85°
62°
25
82°
61°
26
83°
59°
27
83°
61°
28
87°
59°
29
86°
61°
30
88°
60°
1
81°
56°
2
77°
62°
3
84°
61°
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 77° to 99°, with overnight lows between 56° and 73°. The average high for September is 88° with an average low of 63°. 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.
