S
M
T
W
T
F
S
26
86°
60°
27
87°
54°
28
85°
57°
29
80°
58°
30
83°
59°
31
92°
54°
1
79°
58°
2
82°
54°
3
90°
57°
4
103°
62°
5
106°
62°
6
102°
58°
7
99°
60°
8
96°
59°
9
93°
57°
10
89°
58°
11
90°
59°
12
90°
58°
13
91°
60°
14
92°
58°
15
80°
53°
16
82°
55°
17
84°
59°
18
85°
60°
19
84°
58°
20
82°
56°
21
81°
58°
22
81°
55°
23
82°
58°
24
80°
54°
25
87°
60°
26
88°
60°
27
88°
59°
28
87°
60°
29
82°
59°
30
80°
55°
31
79°
52°
1
78°
53°
2
78°
52°
3
79°
55°
4
79°
55°
5
78°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roseburg
Roseburg's August 2026 forecast shows daily high temperatures ranging from 78° to 106°, with overnight lows between 52° and 62°. The average high for August is 86° with an average low of 57°. 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 Roseburg. See also: September | October | November.
