S
M
T
W
T
F
S
26
55°
48°
27
55°
48°
28
56°
50°
29
55°
48°
30
56°
48°
31
56°
49°
1
55°
50°
2
56°
49°
3
56°
49°
4
57°
52°
5
56°
51°
6
56°
51°
7
57°
49°
8
56°
48°
9
58°
52°
10
62°
53°
11
63°
54°
12
64°
53°
13
64°
53°
14
63°
52°
15
62°
48°
16
57°
50°
17
57°
53°
18
62°
51°
19
62°
49°
20
57°
47°
21
60°
52°
22
61°
48°
23
56°
47°
24
56°
48°
25
55°
48°
26
55°
47°
27
56°
52°
28
55°
52°
29
55°
50°
30
57°
51°
31
56°
49°
1
57°
46°
2
58°
47°
3
60°
53°
4
57°
51°
5
56°
48°
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 55° to 64°, with overnight lows between 46° and 54°. The average high for August is 58° 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.
