S
M
T
W
T
F
S
30
82°
66°
31
87°
69°
1
90°
71°
2
94°
73°
3
94°
72°
4
87°
70°
5
82°
68°
6
79°
59°
7
80°
55°
8
83°
56°
9
78°
69°
10
78°
57°
11
81°
52°
12
85°
61°
13
76°
52°
14
72°
46°
15
83°
61°
16
74°
68°
17
80°
66°
18
77°
60°
19
67°
57°
20
67°
61°
21
66°
52°
22
67°
48°
23
66°
55°
24
71°
50°
25
67°
46°
26
72°
41°
27
74°
43°
28
74°
46°
29
77°
48°
30
66°
56°
1
80°
63°
2
67°
46°
3
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marcellus
Marcellus's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Marcellus. See also: October | November | December.
