S
M
T
W
T
F
S
26
68°
60°
27
70°
59°
28
72°
60°
29
70°
60°
30
68°
59°
31
65°
58°
1
65°
58°
2
72°
60°
3
72°
60°
4
68°
59°
5
65°
59°
6
66°
58°
7
69°
60°
8
71°
59°
9
72°
60°
10
72°
60°
11
69°
59°
12
67°
59°
13
71°
60°
14
68°
59°
15
65°
60°
16
65°
59°
17
66°
58°
18
65°
59°
19
69°
59°
20
70°
58°
21
69°
60°
22
71°
57°
23
73°
58°
24
72°
57°
25
71°
58°
26
63°
50°
27
65°
51°
28
69°
56°
29
70°
57°
30
63°
50°
31
62°
55°
1
63°
52°
2
61°
51°
3
63°
51°
4
66°
55°
5
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Boundary Bay
Boundary Bay's August 2026 forecast shows daily high temperatures ranging from 60° to 73°, with overnight lows between 49° and 60°. The average high for August is 68° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Boundary Bay. See also: September | October | November.
