S
M
T
W
T
F
S
30
90°
69°
31
92°
69°
1
94°
69°
2
97°
70°
3
96°
71°
4
95°
70°
5
96°
71°
6
97°
70°
7
87°
71°
8
89°
69°
9
91°
65°
10
92°
68°
11
88°
70°
12
86°
73°
13
91°
70°
14
94°
66°
15
93°
68°
16
90°
69°
17
91°
63°
18
95°
64°
19
93°
68°
20
86°
67°
21
89°
68°
22
84°
68°
23
79°
64°
24
75°
60°
25
77°
59°
26
78°
58°
27
77°
57°
28
76°
58°
29
77°
58°
30
75°
60°
1
75°
60°
2
76°
56°
3
80°
62°
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 75° to 93°, with overnight lows between 56° and 68°. The average high for September is 80° 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.