S
M
T
W
T
F
S
30
91°
64°
31
90°
63°
1
92°
65°
2
91°
64°
3
87°
61°
4
87°
62°
5
90°
63°
6
90°
64°
7
89°
64°
8
90°
63°
9
89°
63°
10
87°
62°
11
83°
63°
12
84°
63°
13
80°
62°
14
82°
62°
15
85°
61°
16
77°
61°
17
80°
60°
18
80°
60°
19
78°
56°
20
80°
59°
21
83°
59°
22
84°
58°
23
75°
58°
24
78°
59°
25
83°
59°
26
77°
58°
27
77°
58°
28
76°
56°
29
74°
56°
30
77°
47°
1
75°
45°
2
71°
43°
3
70°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bentonville
Bentonville's September 2026 forecast shows daily high temperatures ranging from 70° to 92°, with overnight lows between 43° and 65°. The average high for September is 82° with an average low of 59°. 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 Bentonville. See also: October | November | December.
