S
M
T
W
T
F
S
30
85°
71°
31
92°
70°
1
94°
75°
2
97°
75°
3
96°
75°
4
94°
75°
5
97°
70°
6
86°
69°
7
86°
66°
8
85°
62°
9
86°
62°
10
92°
67°
11
94°
73°
12
88°
72°
13
90°
72°
14
92°
65°
15
84°
60°
16
86°
61°
17
87°
62°
18
90°
69°
19
89°
69°
20
88°
67°
21
82°
66°
22
80°
64°
23
80°
64°
24
81°
62°
25
79°
61°
26
83°
69°
27
81°
63°
28
84°
63°
29
83°
64°
30
83°
64°
1
79°
59°
2
81°
64°
3
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fayetteville
Fayetteville's September 2026 forecast shows daily high temperatures ranging from 79° to 92°, with overnight lows between 59° and 72°. The average high for September is 84° with an average low of 64°. 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 Fayetteville. See also: October | November | December.