S
M
T
W
T
F
S
26
82°
66°
27
81°
65°
28
79°
65°
29
84°
66°
30
86°
65°
31
81°
61°
1
78°
62°
2
85°
66°
3
76°
54°
4
77°
64°
5
79°
59°
6
80°
56°
7
83°
57°
8
85°
59°
9
83°
64°
10
84°
60°
11
82°
57°
12
80°
53°
13
74°
54°
14
77°
60°
15
76°
60°
16
75°
56°
17
74°
53°
18
76°
57°
19
79°
61°
20
80°
63°
21
83°
64°
22
81°
64°
23
84°
61°
24
85°
52°
25
78°
53°
26
80°
52°
27
76°
60°
28
80°
52°
29
77°
51°
30
73°
50°
31
73°
57°
1
74°
51°
2
76°
55°
3
74°
50°
4
70°
48°
5
70°
49°
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 70° to 86°, with overnight lows between 48° and 66°. The average high for August is 79° with an average low of 58°. 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.
