S
M
T
W
T
F
S
26
87°
73°
27
88°
70°
28
87°
69°
29
87°
71°
30
88°
75°
31
92°
74°
1
90°
69°
2
87°
69°
3
86°
71°
4
86°
69°
5
87°
69°
6
86°
68°
7
86°
68°
8
87°
69°
9
86°
73°
10
86°
75°
11
87°
74°
12
86°
71°
13
89°
74°
14
91°
68°
15
90°
68°
16
86°
72°
17
89°
73°
18
90°
69°
19
86°
68°
20
85°
67°
21
84°
71°
22
85°
68°
23
85°
73°
24
84°
73°
25
87°
72°
26
85°
73°
27
89°
73°
28
89°
72°
29
88°
72°
30
89°
66°
31
83°
66°
1
83°
67°
2
82°
66°
3
83°
71°
4
84°
65°
5
87°
66°
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 82° to 92°, with overnight lows between 65° and 75°. The average high for August is 87° with an average low of 70°. 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.
