S
M
T
W
T
F
S
30
90°
70°
31
94°
73°
1
97°
71°
2
95°
71°
3
95°
73°
4
95°
73°
5
94°
72°
6
85°
70°
7
83°
65°
8
91°
71°
9
80°
64°
10
80°
55°
11
83°
63°
12
82°
60°
13
75°
63°
14
79°
60°
15
73°
55°
16
74°
53°
17
74°
56°
18
69°
53°
19
72°
53°
20
71°
54°
21
75°
53°
22
76°
58°
23
78°
58°
24
78°
59°
25
79°
59°
26
79°
58°
27
78°
59°
28
77°
59°
29
77°
58°
30
75°
57°
1
74°
51°
2
64°
47°
3
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mediapolis
Mediapolis's September 2026 forecast shows daily high temperatures ranging from 64° to 91°, with overnight lows between 43° and 71°. The average high for September is 76° 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 Mediapolis. See also: October | November | December.
