S
M
T
W
T
F
S
26
71°
54°
27
73°
53°
28
74°
53°
29
77°
54°
30
75°
53°
31
75°
56°
1
76°
54°
2
74°
53°
3
77°
53°
4
80°
55°
5
78°
53°
6
74°
53°
7
75°
54°
8
75°
53°
9
78°
55°
10
74°
52°
11
74°
52°
12
78°
54°
13
76°
52°
14
74°
53°
15
80°
54°
16
81°
61°
17
78°
53°
18
73°
54°
19
72°
59°
20
70°
52°
21
71°
58°
22
77°
61°
23
81°
59°
24
82°
60°
25
80°
59°
26
72°
58°
27
70°
52°
28
79°
52°
29
Hist. Avg.
76°
55°
30
Hist. Avg.
76°
55°
31
Hist. Avg.
76°
55°
1
Hist. Avg.
75°
55°
2
Hist. Avg.
75°
55°
3
Hist. Avg.
75°
55°
4
Hist. Avg.
75°
54°
5
Hist. Avg.
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Bellevue
Bellevue's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 52° and 61°. The average high for August is 76° 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.
