S
M
T
W
T
F
S
26
67°
54°
27
58°
52°
28
58°
49°
29
56°
51°
30
56°
52°
31
57°
52°
1
55°
50°
2
56°
49°
3
56°
50°
4
57°
51°
5
56°
51°
6
56°
52°
7
57°
52°
8
57°
49°
9
56°
48°
10
56°
50°
11
57°
52°
12
56°
53°
13
57°
53°
14
57°
52°
15
58°
48°
16
55°
47°
17
56°
47°
18
56°
48°
19
57°
48°
20
56°
49°
21
55°
49°
22
56°
50°
23
55°
49°
24
59°
52°
25
61°
51°
26
57°
51°
27
60°
50°
28
58°
50°
29
61°
49°
30
61°
49°
31
60°
51°
1
61°
52°
2
60°
50°
3
56°
48°
4
55°
46°
5
54°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sunnyside
Sunnyside's August 2026 forecast shows daily high temperatures ranging from 54° to 67°, with overnight lows between 46° and 54°. The average high for August is 57° with an average low of 50°. 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 Sunnyside. See also: September | October | November.
