S
M
T
W
T
F
S
30
66°
50°
31
66°
51°
1
64°
46°
2
66°
47°
3
69°
45°
4
69°
48°
5
66°
53°
6
70°
45°
7
69°
50°
8
75°
50°
9
54°
39°
10
51°
42°
11
54°
41°
12
55°
41°
13
53°
41°
14
57°
44°
15
62°
45°
16
56°
43°
17
56°
42°
18
56°
43°
19
57°
44°
20
49°
38°
21
53°
37°
22
55°
37°
23
55°
41°
24
56°
39°
25
56°
42°
26
55°
43°
27
54°
40°
28
55°
40°
29
54°
37°
30
54°
39°
1
48°
35°
2
51°
37°
3
53°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lech
Lech's September 2026 forecast shows daily high temperatures ranging from 48° to 75°, with overnight lows between 35° and 50°. The average high for September is 56° with an average low of 41°. 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 Lech. See also: October | November | December.
