S
M
T
W
T
F
S
26
99°
73°
27
100°
75°
28
89°
69°
29
94°
69°
30
91°
71°
31
76°
65°
1
86°
64°
2
85°
65°
3
87°
67°
4
78°
63°
5
80°
60°
6
83°
58°
7
82°
64°
8
83°
57°
9
88°
67°
10
86°
67°
11
88°
69°
12
89°
69°
13
79°
69°
14
83°
66°
15
83°
69°
16
82°
65°
17
87°
60°
18
85°
65°
19
81°
55°
20
81°
58°
21
84°
67°
22
80°
58°
23
81°
54°
24
85°
57°
25
81°
63°
26
80°
58°
27
82°
59°
28
84°
66°
29
80°
67°
30
83°
63°
31
84°
61°
1
77°
59°
2
78°
60°
3
79°
61°
4
77°
59°
5
75°
63°
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 75° to 84°, with overnight lows between 58° and 67°. The average high for August is 80° with an average low of 62°. 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.
