S
M
T
W
T
F
S
30
72°
51°
31
71°
50°
1
66°
49°
2
69°
51°
3
72°
50°
4
70°
50°
5
70°
49°
6
68°
50°
7
71°
50°
8
69°
49°
9
66°
48°
10
62°
47°
11
68°
43°
12
62°
44°
13
67°
44°
14
66°
36°
15
64°
37°
16
63°
40°
17
64°
45°
18
67°
47°
19
68°
44°
20
69°
41°
21
65°
41°
22
61°
44°
23
62°
38°
24
63°
40°
25
59°
38°
26
59°
42°
27
62°
45°
28
63°
44°
29
63°
37°
30
62°
26°
1
50°
32°
2
50°
37°
3
54°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lac La Biche
Lac La Biche's September 2026 forecast shows daily high temperatures ranging from 50° to 72°, with overnight lows between 26° and 51°. The average high for September is 64° with an average low of 43°. 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 La Biche. See also: October | November | December.
