S
M
T
W
T
F
S
26
87°
66°
27
87°
66°
28
86°
65°
29
86°
65°
30
85°
63°
31
79°
61°
1
79°
59°
2
80°
59°
3
80°
62°
4
81°
60°
5
80°
60°
6
81°
61°
7
81°
64°
8
78°
63°
9
80°
62°
10
85°
57°
11
83°
57°
12
86°
60°
13
85°
62°
14
86°
63°
15
87°
62°
16
87°
63°
17
88°
63°
18
87°
62°
19
86°
57°
20
83°
55°
21
80°
55°
22
79°
54°
23
79°
53°
24
80°
55°
25
82°
55°
26
85°
54°
27
85°
54°
28
83°
60°
29
81°
58°
30
78°
57°
31
84°
59°
1
85°
51°
2
84°
52°
3
77°
51°
4
78°
53°
5
79°
59°
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 77° to 88°, with overnight lows between 51° and 66°. 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.
