S
M
T
W
T
F
S
30
79°
63°
31
72°
59°
1
75°
50°
2
77°
50°
3
79°
48°
4
85°
58°
5
73°
48°
6
77°
60°
7
85°
61°
8
69°
52°
9
65°
46°
10
63°
49°
11
64°
52°
12
62°
49°
13
63°
50°
14
65°
52°
15
63°
49°
16
64°
51°
17
64°
48°
18
68°
48°
19
71°
54°
20
69°
53°
21
67°
50°
22
68°
52°
23
69°
53°
24
68°
50°
25
69°
53°
26
70°
52°
27
67°
51°
28
65°
52°
29
66°
52°
30
66°
46°
1
60°
45°
2
58°
44°
3
56°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sembach
Sembach's September 2026 forecast shows daily high temperatures ranging from 56° to 85°, with overnight lows between 43° and 61°. 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 Sembach. See also: October | November | December.