S
M
T
W
T
F
S
30
50°
39°
31
56°
36°
1
62°
37°
2
70°
35°
3
69°
45°
4
67°
44°
5
61°
39°
6
70°
37°
7
53°
34°
8
48°
32°
9
54°
32°
10
61°
46°
11
48°
39°
12
54°
51°
13
61°
41°
14
49°
39°
15
55°
45°
16
53°
36°
17
44°
35°
18
47°
35°
19
45°
35°
20
41°
32°
21
44°
33°
22
46°
35°
23
48°
38°
24
53°
37°
25
52°
36°
26
39°
29°
27
44°
33°
28
42°
35°
29
40°
34°
30
45°
37°
1
48°
38°
2
47°
37°
3
47°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lac-Vacher
Lac-Vacher's September 2026 forecast shows daily high temperatures ranging from 39° to 61°, with overnight lows between 29° and 51°. The average high for September is 47° with an average low of 37°. 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 Lac-Vacher. See also: October | November | December.
