S
M
T
W
T
F
S
26
71°
60°
27
77°
60°
28
73°
58°
29
70°
59°
30
75°
60°
31
70°
58°
1
69°
57°
2
73°
59°
3
77°
60°
4
77°
60°
5
74°
59°
6
74°
60°
7
73°
60°
8
76°
59°
9
77°
61°
10
68°
54°
11
68°
50°
12
69°
50°
13
71°
53°
14
70°
52°
15
71°
51°
16
72°
59°
17
77°
59°
18
77°
58°
19
78°
55°
20
78°
51°
21
77°
50°
22
76°
53°
23
71°
58°
24
76°
58°
25
76°
50°
26
77°
51°
27
77°
57°
28
76°
48°
29
71°
51°
30
70°
53°
31
76°
49°
1
74°
48°
2
69°
52°
3
68°
56°
4
74°
54°
5
75°
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 68° to 78°, with overnight lows between 48° and 61°. The average high for August is 74° 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 Bellingham. See also: September | October | November.
