S
M
T
W
T
F
S
30
72°
63°
31
70°
62°
1
71°
59°
2
71°
57°
3
73°
64°
4
N/A
5
70°
49°
6
75°
58°
7
82°
60°
8
67°
53°
9
64°
50°
10
66°
55°
11
65°
53°
12
63°
51°
13
64°
51°
14
65°
53°
15
68°
55°
16
68°
55°
17
67°
52°
18
66°
49°
19
68°
53°
20
67°
52°
21
69°
54°
22
69°
54°
23
68°
53°
24
70°
54°
25
70°
52°
26
66°
48°
27
64°
47°
28
65°
45°
29
65°
45°
30
64°
52°
1
65°
51°
2
64°
48°
3
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lummen
Lummen's September 2026 forecast shows daily high temperatures ranging from 63° to 82°, with overnight lows between 45° and 60°. The average high for September is 67° with an average low of 52°. 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 Lummen. See also: October | November | December.
