S
M
T
W
T
F
S
26
70°
59°
27
78°
58°
28
71°
57°
29
71°
54°
30
74°
53°
31
79°
56°
1
66°
56°
2
68°
55°
3
71°
52°
4
74°
56°
5
81°
55°
6
82°
57°
7
82°
58°
8
79°
55°
9
72°
54°
10
72°
54°
11
74°
54°
12
74°
56°
13
76°
57°
14
75°
54°
15
72°
54°
16
71°
55°
17
75°
53°
18
78°
56°
19
70°
52°
20
73°
54°
21
72°
57°
22
69°
56°
23
70°
54°
24
74°
57°
25
70°
54°
26
70°
56°
27
71°
54°
28
71°
55°
29
70°
55°
30
70°
53°
31
69°
55°
1
72°
54°
2
76°
58°
3
76°
59°
4
71°
54°
5
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Whidbey Island
South Whidbey Island's August 2026 forecast shows daily high temperatures ranging from 69° to 76°, with overnight lows between 52° and 59°. The average high for August is 71° with an average low of 55°. 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 South Whidbey Island. See also: September | October | November.
