S
M
T
W
T
F
S
26
93°
60°
27
93°
61°
28
92°
60°
29
91°
60°
30
89°
60°
31
92°
61°
1
92°
60°
2
93°
61°
3
93°
61°
4
94°
60°
5
93°
61°
6
92°
61°
7
93°
60°
8
93°
60°
9
84°
55°
10
81°
54°
11
82°
53°
12
81°
53°
13
82°
56°
14
86°
58°
15
90°
58°
16
86°
57°
17
80°
46°
18
83°
49°
19
89°
54°
20
90°
52°
21
85°
53°
22
88°
54°
23
90°
49°
24
79°
53°
25
81°
49°
26
78°
42°
27
77°
43°
28
77°
44°
29
76°
42°
30
75°
42°
31
76°
44°
1
78°
48°
2
83°
51°
3
87°
52°
4
86°
45°
5
76°
45°
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 75° to 94°, with overnight lows between 42° and 61°. The average high for August is 86° 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.
