S
M
T
W
T
F
S
30
96°
73°
31
95°
72°
1
94°
71°
2
93°
71°
3
94°
68°
4
94°
71°
5
92°
68°
6
93°
69°
7
92°
70°
8
88°
69°
9
90°
70°
10
92°
70°
11
92°
69°
12
90°
68°
13
86°
68°
14
86°
67°
15
87°
68°
16
86°
67°
17
86°
67°
18
85°
66°
19
85°
61°
20
84°
59°
21
83°
60°
22
84°
65°
23
86°
65°
24
85°
64°
25
88°
65°
26
87°
64°
27
88°
64°
28
87°
63°
29
87°
62°
30
87°
62°
1
87°
62°
2
86°
61°
3
Hist. Avg.
83°
60°
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 83° to 96°, with overnight lows between 59° and 73°. The average high for September is 89° with an average low of 66°. 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.
