S
M
T
W
T
F
S
26
59°
57°
27
64°
57°
28
62°
52°
29
65°
50°
30
67°
48°
31
72°
54°
1
63°
53°
2
63°
53°
3
71°
47°
4
78°
52°
5
71°
51°
6
61°
52°
7
62°
53°
8
62°
54°
9
64°
55°
10
65°
56°
11
63°
56°
12
64°
54°
13
62°
54°
14
61°
55°
15
62°
55°
16
63°
54°
17
69°
53°
18
66°
55°
19
67°
55°
20
66°
53°
21
65°
56°
22
66°
56°
23
66°
55°
24
65°
50°
25
68°
55°
26
71°
56°
27
68°
56°
28
65°
55°
29
66°
54°
30
65°
52°
31
65°
55°
1
66°
54°
2
64°
53°
3
65°
53°
4
65°
52°
5
63°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Olympic National Park
Olympic National Park's August 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 50° and 56°. The average high for August is 65° with an average low of 54°. 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 Olympic National Park. See also: September | October | November.
