S
M
T
W
T
F
S
30
79°
62°
31
82°
53°
1
74°
53°
2
71°
59°
3
72°
62°
4
79°
53°
5
81°
50°
6
71°
51°
7
71°
53°
8
72°
59°
9
70°
56°
10
70°
57°
11
69°
55°
12
69°
50°
13
68°
48°
14
67°
50°
15
68°
54°
16
66°
58°
17
73°
58°
18
76°
57°
19
76°
54°
20
73°
51°
21
72°
50°
22
68°
47°
23
63°
46°
24
64°
45°
25
65°
46°
26
66°
48°
27
Hist. Avg.
67°
47°
28
Hist. Avg.
67°
47°
29
Hist. Avg.
66°
46°
30
Hist. Avg.
66°
46°
1
Hist. Avg.
65°
45°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Roseville
Roseville's September 2026 forecast shows daily high temperatures ranging from 63° to 82°, with overnight lows between 45° and 62°. The average high for September is 71° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Roseville. See also: October | November | December.
