S
M
T
W
T
F
S
30
69°
51°
31
72°
50°
1
69°
51°
2
68°
56°
3
68°
50°
4
69°
50°
5
67°
52°
6
67°
49°
7
68°
48°
8
67°
49°
9
68°
55°
10
71°
54°
11
72°
49°
12
65°
47°
13
64°
51°
14
70°
54°
15
71°
53°
16
66°
51°
17
63°
52°
18
69°
54°
19
70°
54°
20
68°
53°
21
69°
53°
22
69°
52°
23
68°
53°
24
69°
49°
25
65°
48°
26
61°
52°
27
60°
51°
28
64°
53°
29
67°
50°
30
59°
43°
1
59°
42°
2
Hist. Avg.
61°
47°
3
Hist. Avg.
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Heusweiler
Heusweiler's September 2026 forecast shows daily high temperatures ranging from 59° to 72°, with overnight lows between 42° and 56°. The average high for September is 67° with an average low of 51°. 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 Heusweiler. See also: October | November | December.