S
M
T
W
T
F
S
30
84°
66°
31
77°
63°
1
79°
57°
2
81°
54°
3
88°
54°
4
91°
61°
5
84°
59°
6
82°
52°
7
93°
59°
8
95°
63°
9
73°
50°
10
73°
45°
11
75°
47°
12
76°
50°
13
76°
56°
14
77°
54°
15
80°
57°
16
70°
48°
17
71°
47°
18
64°
51°
19
67°
50°
20
69°
50°
21
65°
51°
22
67°
51°
23
66°
48°
24
70°
53°
25
71°
50°
26
63°
46°
27
61°
52°
28
67°
49°
29
68°
44°
30
59°
44°
1
58°
45°
2
59°
43°
3
61°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lahr
Lahr's September 2026 forecast shows daily high temperatures ranging from 58° to 80°, with overnight lows between 43° and 57°. The average high for September is 68° 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 Lahr. See also: October | November | December.
