S
M
T
W
T
F
S
30
50°
37°
31
51°
43°
1
52°
40°
2
57°
36°
3
57°
36°
4
50°
40°
5
58°
44°
6
50°
38°
7
53°
36°
8
48°
41°
9
56°
43°
10
58°
43°
11
59°
42°
12
58°
43°
13
57°
42°
14
54°
44°
15
54°
44°
16
56°
42°
17
54°
43°
18
55°
42°
19
54°
43°
20
53°
41°
21
52°
33°
22
51°
32°
23
44°
35°
24
41°
36°
25
46°
31°
26
45°
31°
27
38°
32°
28
40°
33°
29
42°
31°
30
43°
29°
1
38°
29°
2
38°
27°
3
37°
29°
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 37° to 59°, with overnight lows between 27° and 44°. The average high for September is 50° 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.
