S
M
T
W
T
F
S
26
77°
66°
27
78°
62°
28
77°
62°
29
81°
67°
30
84°
67°
31
83°
63°
1
77°
61°
2
82°
67°
3
76°
57°
4
75°
64°
5
78°
62°
6
77°
59°
7
78°
58°
8
79°
57°
9
80°
65°
10
80°
62°
11
77°
60°
12
81°
57°
13
74°
56°
14
76°
58°
15
78°
60°
16
76°
59°
17
74°
55°
18
74°
57°
19
77°
60°
20
77°
64°
21
80°
65°
22
76°
66°
23
82°
65°
24
81°
58°
25
81°
59°
26
80°
55°
27
76°
63°
28
79°
57°
29
77°
55°
30
73°
52°
31
72°
55°
1
72°
53°
2
73°
54°
3
72°
54°
4
70°
51°
5
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roseville
Roseville's August 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 51° and 67°. The average high for August is 77° with an average low of 60°. 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 Roseville. See also: September | October | November.
