S
M
T
W
T
F
S
26
73°
55°
27
70°
53°
28
72°
53°
29
73°
52°
30
72°
49°
31
70°
50°
1
70°
48°
2
68°
53°
3
70°
54°
4
73°
56°
5
72°
55°
6
74°
54°
7
74°
48°
8
72°
47°
9
72°
48°
10
71°
46°
11
65°
47°
12
65°
51°
13
71°
51°
14
72°
50°
15
72°
49°
16
73°
50°
17
72°
47°
18
71°
51°
19
69°
46°
20
69°
49°
21
66°
46°
22
64°
45°
23
65°
44°
24
64°
46°
25
65°
47°
26
63°
46°
27
63°
50°
28
62°
45°
29
64°
45°
30
65°
49°
31
66°
52°
1
67°
53°
2
70°
53°
3
73°
48°
4
72°
52°
5
71°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Copalis Beach
Copalis Beach's August 2026 forecast shows daily high temperatures ranging from 62° to 74°, with overnight lows between 44° and 56°. The average high for August is 69° 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 Copalis Beach. See also: September | October | November.
