S
M
T
W
T
F
S
30
99°
64°
31
100°
68°
1
101°
72°
2
100°
72°
3
100°
73°
4
101°
74°
5
103°
73°
6
103°
75°
7
98°
65°
8
101°
71°
9
102°
73°
10
92°
70°
11
94°
71°
12
99°
69°
13
98°
71°
14
94°
70°
15
90°
66°
16
89°
64°
17
90°
67°
18
92°
62°
19
89°
63°
20
85°
59°
21
90°
66°
22
89°
65°
23
89°
65°
24
88°
64°
25
89°
65°
26
87°
64°
27
87°
63°
28
86°
64°
29
86°
63°
30
85°
61°
1
81°
53°
2
74°
51°
3
74°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Morrilton
Morrilton's September 2026 forecast shows daily high temperatures ranging from 74° to 102°, with overnight lows between 50° and 73°. The average high for September is 90° with an average low of 64°. 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 Morrilton. See also: October | November | December.
