S
M
T
W
T
F
S
26
84°
66°
27
80°
60°
28
77°
62°
29
81°
66°
30
80°
62°
31
80°
60°
1
81°
61°
2
79°
59°
3
79°
60°
4
80°
59°
5
78°
59°
6
79°
61°
7
80°
61°
8
78°
65°
9
80°
67°
10
82°
64°
11
80°
66°
12
82°
63°
13
82°
60°
14
86°
58°
15
78°
58°
16
78°
59°
17
80°
60°
18
80°
58°
19
77°
59°
20
77°
57°
21
78°
58°
22
78°
59°
23
77°
59°
24
76°
58°
25
77°
63°
26
79°
65°
27
82°
65°
28
84°
64°
29
85°
56°
30
84°
57°
31
76°
58°
1
76°
58°
2
75°
63°
3
81°
55°
4
78°
55°
5
75°
60°
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 75° to 86°, with overnight lows between 55° and 67°. The average high for August is 80° 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.
