S
M
T
W
T
F
S
30
69°
58°
31
78°
52°
1
74°
55°
2
71°
59°
3
71°
56°
4
67°
50°
5
77°
55°
6
77°
51°
7
64°
54°
8
75°
59°
9
76°
53°
10
74°
58°
11
71°
52°
12
73°
51°
13
67°
56°
14
66°
57°
15
73°
57°
16
80°
50°
17
75°
49°
18
76°
51°
19
73°
51°
20
73°
52°
21
71°
51°
22
70°
48°
23
69°
49°
24
68°
53°
25
69°
52°
26
67°
52°
27
69°
50°
28
68°
52°
29
67°
50°
30
68°
47°
1
59°
48°
2
60°
50°
3
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Langley
Langley's September 2026 forecast shows daily high temperatures ranging from 59° to 76°, with overnight lows between 47° and 53°. The average high for September is 68° with an average low of 50°. 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 Langley. See also: October | November | December.