S
M
T
W
T
F
S
26
75°
60°
27
72°
54°
28
74°
58°
29
74°
58°
30
75°
51°
31
71°
52°
1
70°
58°
2
74°
56°
3
75°
56°
4
74°
53°
5
74°
54°
6
73°
58°
7
74°
59°
8
75°
57°
9
76°
55°
10
75°
50°
11
74°
49°
12
69°
50°
13
72°
48°
14
70°
49°
15
71°
50°
16
73°
57°
17
74°
59°
18
74°
60°
19
75°
59°
20
76°
59°
21
75°
58°
22
74°
54°
23
73°
57°
24
74°
55°
25
66°
54°
26
66°
53°
27
65°
49°
28
63°
47°
29
65°
46°
30
66°
47°
31
66°
49°
1
65°
56°
2
64°
56°
3
63°
55°
4
63°
54°
5
64°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oak Harbor
Oak Harbor's August 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 46° and 60°. The average high for August is 71° 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 Oak Harbor. See also: September | October | November.
