S
M
T
W
T
F
S
30
84°
61°
31
82°
63°
1
83°
63°
2
82°
62°
3
83°
63°
4
82°
62°
5
81°
61°
6
81°
61°
7
80°
60°
8
80°
61°
9
81°
60°
10
80°
59°
11
80°
58°
12
81°
59°
13
81°
60°
14
80°
60°
15
80°
59°
16
79°
60°
17
78°
60°
18
77°
57°
19
73°
50°
20
72°
57°
21
71°
58°
22
72°
49°
23
70°
48°
24
69°
50°
25
71°
55°
26
73°
56°
27
67°
49°
28
67°
49°
29
68°
50°
30
67°
53°
1
67°
54°
2
68°
46°
3
66°
44°
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 66° to 84°, with overnight lows between 44° and 63°. The average high for September is 76° with an average low of 56°. 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.