S
M
T
W
T
F
S
30
64°
53°
31
76°
52°
1
70°
53°
2
65°
57°
3
67°
54°
4
64°
52°
5
74°
53°
6
76°
46°
7
70°
50°
8
74°
56°
9
72°
50°
10
72°
53°
11
71°
49°
12
82°
50°
13
71°
48°
14
64°
57°
15
74°
53°
16
78°
46°
17
77°
46°
18
75°
46°
19
72°
48°
20
73°
46°
21
71°
45°
22
71°
49°
23
N/A
24
60°
45°
25
55°
50°
26
62°
43°
27
66°
40°
28
60°
43°
29
66°
47°
30
63°
40°
1
60°
46°
2
62°
51°
3
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Squamish
Squamish's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Squamish. See also: October | November | December.
