S
M
T
W
T
F
S
30
75°
57°
31
70°
52°
1
74°
53°
2
67°
54°
3
69°
56°
4
68°
50°
5
66°
50°
6
66°
49°
7
67°
49°
8
68°
50°
9
71°
49°
10
65°
49°
11
70°
54°
12
71°
48°
13
68°
54°
14
64°
52°
15
64°
50°
16
64°
45°
17
63°
47°
18
63°
46°
19
64°
45°
20
62°
46°
21
62°
52°
22
63°
53°
23
63°
48°
24
62°
46°
25
61°
45°
26
62°
43°
27
60°
47°
28
60°
43°
29
61°
43°
30
61°
44°
1
64°
48°
2
63°
46°
3
60°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Idar-Oberstein
Idar-Oberstein's September 2026 forecast shows daily high temperatures ranging from 60° to 75°, with overnight lows between 43° and 57°. The average high for September is 65° with an average low of 49°. 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 Idar-Oberstein. See also: October | November | December.
