S
M
T
W
T
F
S
30
92°
70°
31
93°
72°
1
96°
72°
2
97°
71°
3
96°
73°
4
94°
73°
5
95°
73°
6
87°
67°
7
89°
68°
8
97°
71°
9
87°
59°
10
82°
62°
11
80°
62°
12
85°
61°
13
77°
59°
14
75°
54°
15
75°
55°
16
77°
58°
17
78°
58°
18
75°
57°
19
76°
52°
20
80°
58°
21
80°
57°
22
79°
57°
23
79°
56°
24
78°
58°
25
78°
57°
26
77°
57°
27
78°
56°
28
77°
57°
29
74°
56°
30
74°
53°
1
73°
47°
2
64°
44°
3
64°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mount Ayr
Mount Ayr's September 2026 forecast shows daily high temperatures ranging from 64° to 97°, with overnight lows between 41° and 71°. The average high for September is 78° with an average low of 57°. 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 Mount Ayr. See also: October | November | December.
