S
M
T
W
T
F
S
26
86°
65°
27
86°
65°
28
85°
64°
29
82°
65°
30
80°
65°
31
86°
64°
1
85°
65°
2
86°
65°
3
88°
64°
4
88°
64°
5
87°
62°
6
85°
63°
7
81°
64°
8
82°
59°
9
81°
59°
10
82°
57°
11
81°
63°
12
85°
63°
13
87°
62°
14
86°
57°
15
81°
56°
16
80°
58°
17
82°
62°
18
79°
56°
19
83°
56°
20
82°
57°
21
83°
56°
22
84°
60°
23
85°
56°
24
85°
55°
25
82°
55°
26
83°
59°
27
81°
58°
28
78°
59°
29
84°
62°
30
84°
59°
31
83°
52°
1
81°
51°
2
77°
53°
3
76°
52°
4
77°
52°
5
76°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bellingham
Bellingham's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 51° and 65°. The average high for August is 83° with an average low of 59°. 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 Bellingham. See also: September | October | November.
