S
M
T
W
T
F
S
26
85°
65°
27
85°
69°
28
82°
67°
29
83°
63°
30
85°
61°
31
89°
66°
1
82°
66°
2
77°
66°
3
82°
64°
4
84°
57°
5
89°
60°
6
87°
66°
7
87°
68°
8
89°
69°
9
87°
62°
10
86°
68°
11
77°
66°
12
75°
64°
13
82°
64°
14
84°
70°
15
79°
70°
16
80°
68°
17
80°
62°
18
81°
66°
19
76°
64°
20
74°
59°
21
74°
58°
22
75°
59°
23
79°
63°
24
80°
62°
25
81°
65°
26
82°
64°
27
78°
61°
28
76°
60°
29
77°
63°
30
80°
64°
31
74°
59°
1
74°
63°
2
75°
63°
3
75°
61°
4
73°
57°
5
75°
58°
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 73° to 82°, with overnight lows between 57° and 70°. The average high for August is 77° with an average low of 62°. 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.
