S
M
T
W
T
F
S
26
62°
51°
27
66°
50°
28
66°
42°
29
65°
50°
30
72°
46°
31
62°
54°
1
65°
53°
2
62°
55°
3
59°
54°
4
60°
52°
5
62°
53°
6
60°
53°
7
63°
54°
8
63°
55°
9
66°
51°
10
68°
48°
11
67°
53°
12
68°
50°
13
68°
46°
14
69°
46°
15
68°
53°
16
65°
51°
17
62°
55°
18
60°
53°
19
61°
52°
20
60°
45°
21
61°
48°
22
59°
49°
23
56°
47°
24
59°
45°
25
59°
48°
26
61°
47°
27
59°
48°
28
56°
52°
29
56°
52°
30
57°
49°
31
55°
49°
1
55°
50°
2
54°
49°
3
55°
49°
4
55°
50°
5
56°
49°
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 69°, with overnight lows between 45° and 55°. The average high for August is 59° with an average low of 49°. 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.
