S
M
T
W
T
F
S
26
90°
50°
27
90°
54°
28
86°
54°
29
88°
50°
30
90°
52°
31
95°
54°
1
84°
55°
2
79°
45°
3
81°
43°
4
86°
48°
5
97°
54°
6
100°
61°
7
100°
59°
8
95°
59°
9
93°
54°
10
90°
54°
11
90°
54°
12
84°
54°
13
84°
50°
14
86°
54°
15
86°
55°
16
88°
59°
17
90°
59°
18
93°
57°
19
95°
52°
20
97°
61°
21
87°
50°
22
81°
42°
23
80°
42°
24
83°
46°
25
84°
50°
26
78°
42°
27
77°
38°
28
77°
42°
29
80°
40°
30
73°
37°
31
73°
39°
1
75°
41°
2
72°
38°
3
90°
40°
4
77°
40°
5
80°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sunriver
Sunriver's August 2026 forecast shows daily high temperatures ranging from 72° to 90°, with overnight lows between 37° and 50°. The average high for August is 79° with an average low of 42°. 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 Sunriver. See also: September | October | November.
