S
M
T
W
T
F
S
26
73°
57°
27
84°
57°
28
84°
57°
29
82°
50°
30
83°
49°
31
74°
48°
1
75°
49°
2
79°
48°
3
80°
53°
4
82°
56°
5
82°
57°
6
81°
58°
7
83°
56°
8
81°
56°
9
79°
52°
10
79°
48°
11
72°
55°
12
77°
48°
13
72°
50°
14
76°
55°
15
81°
52°
16
80°
46°
17
74°
54°
18
77°
53°
19
79°
47°
20
73°
46°
21
75°
54°
22
76°
48°
23
76°
43°
24
70°
43°
25
69°
45°
26
68°
44°
27
69°
45°
28
68°
44°
29
66°
44°
30
65°
40°
31
65°
43°
1
66°
45°
2
65°
44°
3
69°
50°
4
73°
52°
5
73°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Birch Bay
Birch Bay's August 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 40° and 58°. The average high for August is 75° 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 August weather will actually feel in Birch Bay. See also: September | October | November.
