S
M
T
W
T
F
S
30
79°
41°
31
71°
42°
1
69°
38°
2
70°
35°
3
69°
37°
4
66°
35°
5
67°
39°
6
75°
38°
7
76°
32°
8
64°
31°
9
63°
31°
10
62°
29°
11
62°
29°
12
64°
31°
13
68°
37°
14
66°
41°
15
63°
40°
16
71°
38°
17
67°
34°
18
60°
37°
19
60°
35°
20
62°
29°
21
66°
28°
22
63°
24°
23
58°
26°
24
60°
27°
25
67°
32°
26
57°
27°
27
61°
28°
28
60°
29°
29
Hist. Avg.
64°
34°
30
Hist. Avg.
64°
34°
1
Hist. Avg.
63°
34°
2
Hist. Avg.
62°
33°
3
Hist. Avg.
62°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Marion
Marion's September 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 24° and 42°. The average high for September is 66° with an average low of 33°. 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 Marion. See also: October | November | December.
