S
M
T
W
T
F
S
26
83°
55°
27
83°
57°
28
84°
59°
29
87°
57°
30
91°
62°
31
91°
55°
1
85°
55°
2
85°
56°
3
84°
57°
4
85°
62°
5
84°
64°
6
89°
61°
7
90°
60°
8
89°
57°
9
85°
54°
10
84°
54°
11
84°
55°
12
85°
57°
13
83°
58°
14
85°
59°
15
88°
60°
16
87°
56°
17
84°
54°
18
85°
55°
19
88°
58°
20
88°
58°
21
82°
55°
22
82°
54°
23
87°
56°
24
86°
60°
25
85°
59°
26
85°
55°
27
79°
52°
28
80°
53°
29
80°
54°
30
Hist. Avg.
87°
54°
31
Hist. Avg.
86°
54°
1
Hist. Avg.
86°
53°
2
Hist. Avg.
86°
53°
3
Hist. Avg.
86°
53°
4
Hist. Avg.
86°
53°
5
Hist. Avg.
86°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Roseburg
Roseburg's August 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 52° and 64°. The average high for August is 85° 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.
