S
M
T
W
T
F
S
30
88°
68°
31
86°
67°
1
86°
67°
2
87°
66°
3
83°
64°
4
83°
60°
5
81°
59°
6
84°
61°
7
87°
63°
8
87°
65°
9
86°
65°
10
82°
59°
11
81°
58°
12
82°
59°
13
85°
57°
14
81°
56°
15
79°
56°
16
80°
55°
17
79°
56°
18
80°
57°
19
85°
59°
20
85°
60°
21
86°
61°
22
85°
62°
23
85°
61°
24
81°
59°
25
83°
59°
26
84°
60°
27
84°
58°
28
83°
59°
29
84°
59°
30
84°
58°
1
83°
58°
2
84°
57°
3
83°
50°
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 88°, with overnight lows between 50° and 68°. The average high for September is 84° with an average low of 60°. 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.