S
M
T
W
T
F
S
30
91°
67°
31
90°
68°
1
91°
68°
2
90°
67°
3
91°
68°
4
91°
68°
5
90°
67°
6
91°
67°
7
89°
62°
8
84°
66°
9
87°
65°
10
87°
61°
11
86°
61°
12
87°
62°
13
88°
64°
14
89°
65°
15
88°
64°
16
87°
64°
17
86°
59°
18
82°
58°
19
80°
63°
20
81°
59°
21
82°
57°
22
79°
58°
23
80°
62°
24
80°
62°
25
84°
61°
26
85°
61°
27
81°
60°
28
84°
61°
29
84°
60°
30
79°
60°
1
78°
59°
2
81°
53°
3
77°
52°
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 77° to 91°, with overnight lows between 52° and 68°. The average high for September is 85° with an average low of 62°. 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.