S
M
T
W
T
F
S
30
72°
63°
31
70°
61°
1
72°
57°
2
70°
55°
3
72°
64°
4
73°
63°
5
70°
54°
6
75°
50°
7
82°
61°
8
75°
55°
9
66°
54°
10
70°
50°
11
71°
53°
12
72°
60°
13
68°
60°
14
74°
59°
15
75°
55°
16
65°
52°
17
65°
54°
18
65°
53°
19
66°
54°
20
69°
55°
21
65°
52°
22
65°
52°
23
66°
53°
24
68°
52°
25
67°
51°
26
61°
50°
27
63°
53°
28
65°
46°
29
60°
46°
30
59°
49°
1
59°
49°
2
60°
50°
3
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mechelen
Mechelen's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 46° and 60°. The average high for September is 66° with an average low of 53°. 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 Mechelen. See also: October | November | December.
