S
M
T
W
T
F
S
30
77°
54°
31
76°
49°
1
75°
47°
2
68°
49°
3
69°
49°
4
68°
48°
5
68°
48°
6
67°
49°
7
70°
48°
8
73°
47°
9
71°
48°
10
72°
53°
11
70°
53°
12
72°
52°
13
71°
47°
14
72°
46°
15
69°
50°
16
70°
48°
17
65°
49°
18
65°
50°
19
63°
46°
20
63°
50°
21
Hist. Avg.
65°
42°
22
Hist. Avg.
64°
42°
23
Hist. Avg.
64°
41°
24
Hist. Avg.
64°
41°
25
Hist. Avg.
63°
41°
26
Hist. Avg.
63°
41°
27
Hist. Avg.
63°
40°
28
Hist. Avg.
62°
40°
29
Hist. Avg.
62°
40°
30
Hist. Avg.
62°
39°
1
Hist. Avg.
61°
39°
2
Hist. Avg.
61°
39°
3
Hist. Avg.
60°
39°
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 63° to 77°, with overnight lows between 46° and 54°. The average high for September is 70° with an average low of 49°. 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.
