S
M
T
W
T
F
S
30
94°
72°
31
94°
72°
1
93°
71°
2
93°
72°
3
92°
71°
4
93°
71°
5
93°
70°
6
92°
70°
7
92°
69°
8
91°
70°
9
93°
70°
10
93°
69°
11
92°
71°
12
93°
70°
13
92°
70°
14
92°
66°
15
91°
67°
16
92°
66°
17
91°
67°
18
92°
59°
19
84°
56°
20
80°
56°
21
84°
57°
22
86°
61°
23
88°
63°
24
88°
62°
25
87°
63°
26
86°
61°
27
86°
61°
28
85°
58°
29
77°
56°
30
79°
59°
1
84°
59°
2
85°
58°
3
85°
59°
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 94°, with overnight lows between 56° and 72°. The average high for September is 89° with an average low of 65°. 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.
