S
M
T
W
T
F
S
30
79°
59°
31
81°
61°
1
81°
57°
2
80°
55°
3
79°
54°
4
77°
56°
5
79°
57°
6
83°
62°
7
85°
65°
8
87°
63°
9
84°
55°
10
79°
55°
11
79°
63°
12
80°
57°
13
85°
53°
14
77°
52°
15
76°
54°
16
77°
59°
17
81°
58°
18
82°
54°
19
78°
60°
20
81°
59°
21
83°
59°
22
83°
58°
23
82°
59°
24
82°
59°
25
81°
58°
26
81°
59°
27
82°
58°
28
82°
57°
29
81°
57°
30
82°
58°
1
82°
49°
2
81°
46°
3
79°
46°
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 76° to 87°, with overnight lows between 46° and 65°. The average high for September is 81° with an average low of 57°. 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.
