S
M
T
W
T
F
S
30
80°
62°
31
81°
53°
1
77°
51°
2
73°
52°
3
74°
58°
4
76°
60°
5
81°
51°
6
77°
50°
7
72°
50°
8
73°
58°
9
74°
58°
10
76°
54°
11
72°
54°
12
70°
52°
13
71°
47°
14
69°
47°
15
69°
51°
16
70°
55°
17
69°
55°
18
77°
56°
19
77°
52°
20
74°
53°
21
75°
50°
22
70°
48°
23
66°
45°
24
65°
43°
25
66°
44°
26
66°
43°
27
Hist. Avg.
68°
45°
28
Hist. Avg.
68°
44°
29
Hist. Avg.
68°
44°
30
Hist. Avg.
67°
44°
1
Hist. Avg.
67°
43°
2
Hist. Avg.
66°
43°
3
Hist. Avg.
66°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Elk Grove
Elk Grove's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 43° and 62°. The average high for September is 73° with an average low of 52°. 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 Elk Grove. See also: October | November | December.