S
M
T
W
T
F
S
30
75°
62°
31
70°
61°
1
78°
66°
2
85°
64°
3
85°
66°
4
81°
65°
5
77°
59°
6
76°
55°
7
78°
53°
8
81°
53°
9
77°
62°
10
79°
64°
11
73°
54°
12
80°
48°
13
83°
64°
14
68°
52°
15
72°
46°
16
78°
60°
17
77°
67°
18
75°
54°
19
65°
44°
20
63°
52°
21
62°
47°
22
67°
45°
23
69°
43°
24
69°
41°
25
73°
40°
26
67°
49°
27
66°
52°
28
64°
57°
29
63°
50°
30
77°
47°
1
74°
62°
2
75°
54°
3
65°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Manlius
Manlius'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 Manlius. See also: October | November | December.