S
M
T
W
T
F
S
30
80°
62°
31
72°
61°
1
80°
61°
2
76°
56°
3
71°
54°
4
74°
60°
5
79°
60°
6
79°
59°
7
78°
60°
8
79°
60°
9
79°
59°
10
77°
59°
11
70°
57°
12
70°
50°
13
73°
52°
14
72°
48°
15
70°
46°
16
68°
43°
17
68°
47°
18
66°
43°
19
64°
42°
20
65°
43°
21
66°
43°
22
67°
45°
23
71°
48°
24
74°
50°
25
75°
54°
26
75°
52°
27
71°
43°
28
72°
52°
29
67°
41°
30
65°
52°
1
68°
39°
2
72°
39°
3
67°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Elm Grove
Elm Grove's September 2026 forecast shows daily high temperatures ranging from 64° to 80°, with overnight lows between 37° and 62°. The average high for September is 72° 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 Elm Grove. See also: October | November | December.
