S
M
T
W
T
F
S
30
91°
72°
31
95°
75°
1
97°
70°
2
97°
68°
3
95°
72°
4
95°
72°
5
97°
70°
6
86°
72°
7
79°
68°
8
96°
72°
9
81°
63°
10
81°
60°
11
85°
65°
12
85°
64°
13
86°
64°
14
84°
57°
15
73°
51°
16
74°
54°
17
71°
52°
18
71°
53°
19
74°
51°
20
72°
53°
21
76°
52°
22
80°
57°
23
80°
58°
24
81°
59°
25
80°
59°
26
80°
58°
27
79°
58°
28
77°
57°
29
78°
57°
30
75°
55°
1
75°
49°
2
65°
45°
3
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Milan
Milan's September 2026 forecast shows daily high temperatures ranging from 65° to 96°, with overnight lows between 42° and 72°. The average high for September is 78° with an average low of 56°. 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 Milan. See also: October | November | December.