S
M
T
W
T
F
S
26
85°
58°
27
93°
61°
28
94°
60°
29
93°
60°
30
94°
61°
31
93°
58°
1
91°
58°
2
92°
60°
3
93°
60°
4
94°
59°
5
93°
60°
6
93°
60°
7
92°
59°
8
93°
60°
9
93°
62°
10
81°
49°
11
80°
48°
12
81°
48°
13
83°
52°
14
86°
51°
15
85°
52°
16
85°
56°
17
91°
55°
18
90°
56°
19
91°
59°
20
93°
58°
21
92°
56°
22
92°
51°
23
88°
51°
24
85°
50°
25
86°
49°
26
88°
49°
27
89°
53°
28
90°
50°
29
88°
49°
30
84°
54°
31
88°
47°
1
78°
47°
2
84°
44°
3
77°
50°
4
78°
49°
5
82°
52°
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 77° to 94°, with overnight lows between 44° and 62°. The average high for August is 88° with an average low of 54°. 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.
