S
M
T
W
T
F
S
30
93°
65°
31
94°
66°
1
94°
67°
2
93°
68°
3
94°
67°
4
93°
67°
5
92°
66°
6
92°
59°
7
90°
58°
8
83°
63°
9
82°
64°
10
83°
65°
11
86°
64°
12
89°
65°
13
90°
56°
14
89°
54°
15
83°
53°
16
77°
53°
17
77°
54°
18
81°
58°
19
79°
53°
20
78°
52°
21
77°
56°
22
78°
58°
23
82°
60°
24
84°
61°
25
85°
61°
26
85°
60°
27
86°
58°
28
82°
56°
29
81°
55°
30
81°
55°
1
80°
54°
2
83°
58°
3
75°
46°
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 75° to 94°, with overnight lows between 46° and 68°. The average high for September is 85° with an average low of 59°. 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.