S
M
T
W
T
F
S
26
67°
57°
27
74°
55°
28
69°
56°
29
73°
50°
30
71°
55°
31
80°
49°
1
69°
57°
2
70°
51°
3
74°
46°
4
74°
49°
5
78°
51°
6
80°
53°
7
81°
54°
8
74°
57°
9
70°
57°
10
67°
56°
11
73°
56°
12
74°
58°
13
76°
55°
14
72°
56°
15
68°
57°
16
68°
58°
17
73°
55°
18
77°
58°
19
74°
57°
20
79°
55°
21
82°
54°
22
68°
58°
23
69°
54°
24
81°
51°
25
83°
53°
26
69°
58°
27
71°
58°
28
69°
55°
29
68°
52°
30
66°
53°
31
67°
55°
1
68°
57°
2
61°
52°
3
62°
48°
4
65°
49°
5
65°
54°
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 61° to 71°, with overnight lows between 48° and 58°. The average high for August is 66° with an average low of 54°. 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.
