S
M
T
W
T
F
S
30
74°
53°
31
73°
53°
1
73°
52°
2
72°
50°
3
72°
46°
4
65°
42°
5
64°
51°
6
65°
52°
7
70°
52°
8
70°
51°
9
71°
50°
10
68°
43°
11
70°
44°
12
70°
50°
13
69°
51°
14
69°
49°
15
68°
48°
16
65°
40°
17
61°
47°
18
65°
41°
19
59°
44°
20
60°
43°
21
57°
38°
22
56°
42°
23
58°
43°
24
56°
40°
25
56°
37°
26
55°
38°
27
56°
39°
28
57°
35°
29
54°
36°
30
55°
34°
1
54°
36°
2
53°
32°
3
52°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fossambault-sur-le-Lac
Fossambault-sur-le-Lac's September 2026 forecast shows daily high temperatures ranging from 52° to 74°, with overnight lows between 32° and 53°. The average high for September is 63° with an average low of 44°. 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 Fossambault-sur-le-Lac. See also: October | November | December.
