S
M
T
W
T
F
S
26
88°
59°
27
91°
61°
28
92°
60°
29
92°
61°
30
90°
61°
31
91°
60°
1
92°
61°
2
92°
61°
3
91°
62°
4
91°
61°
5
88°
60°
6
88°
60°
7
90°
59°
8
91°
61°
9
90°
61°
10
89°
48°
11
81°
47°
12
80°
48°
13
82°
50°
14
84°
52°
15
88°
50°
16
87°
53°
17
86°
53°
18
88°
52°
19
89°
56°
20
91°
56°
21
89°
55°
22
88°
55°
23
88°
53°
24
87°
53°
25
87°
51°
26
86°
53°
27
87°
54°
28
86°
54°
29
82°
53°
30
84°
54°
31
77°
49°
1
76°
52°
2
81°
49°
3
80°
50°
4
74°
49°
5
75°
51°
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 92°, with overnight lows between 47° and 62°. The average high for August is 86° 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 Bellevue. See also: September | October | November.
