S
M
T
W
T
F
S
26
82°
66°
27
83°
67°
28
79°
66°
29
79°
66°
30
81°
67°
31
85°
68°
1
82°
67°
2
82°
65°
3
86°
67°
4
86°
66°
5
80°
64°
6
81°
63°
7
80°
60°
8
78°
61°
9
77°
59°
10
78°
59°
11
81°
65°
12
85°
65°
13
81°
62°
14
84°
58°
15
79°
58°
16
80°
65°
17
84°
62°
18
78°
58°
19
78°
58°
20
81°
59°
21
81°
61°
22
84°
63°
23
84°
63°
24
83°
62°
25
85°
62°
26
83°
63°
27
84°
59°
28
83°
63°
29
83°
63°
30
82°
56°
31
76°
53°
1
75°
54°
2
75°
54°
3
76°
55°
4
75°
54°
5
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bellevue
Bellevue's August 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 53° and 68°. The average high for August is 81° with an average low of 61°. 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 Bellevue. See also: September | October | November.
