S
M
T
W
T
F
S
30
90°
68°
31
90°
66°
1
90°
65°
2
89°
68°
3
89°
73°
4
92°
69°
5
86°
69°
6
84°
68°
7
83°
66°
8
83°
66°
9
81°
58°
10
81°
52°
11
83°
58°
12
73°
55°
13
66°
52°
14
71°
60°
15
70°
57°
16
73°
55°
17
74°
64°
18
77°
63°
19
69°
62°
20
62°
59°
21
60°
55°
22
59°
54°
23
69°
51°
24
61°
57°
25
60°
58°
26
63°
58°
27
67°
57°
28
69°
58°
29
70°
51°
30
68°
52°
1
70°
51°
2
68°
52°
3
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marcus
Marcus's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 44° and 58°. The average high for September is 66° with an average low of 54°. 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 Marcus. See also: October | November | December.
