S
M
T
W
T
F
S
30
71°
53°
31
70°
53°
1
71°
60°
2
69°
61°
3
77°
61°
4
78°
60°
5
78°
56°
6
72°
51°
7
69°
53°
8
72°
52°
9
70°
49°
10
68°
50°
11
68°
50°
12
71°
51°
13
70°
56°
14
74°
55°
15
66°
50°
16
65°
52°
17
66°
53°
18
64°
54°
19
69°
46°
20
65°
49°
21
67°
46°
22
68°
46°
23
64°
45°
24
65°
45°
25
65°
52°
26
68°
49°
27
63°
53°
28
68°
51°
29
69°
43°
30
61°
48°
1
64°
52°
2
68°
50°
3
66°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sacramento
Sacramento's September 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 43° and 61°. The average high for September is 69° with an average low of 51°. 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 Sacramento. See also: October | November | December.