S
M
T
W
T
F
S
30
80°
58°
31
78°
57°
1
75°
62°
2
75°
58°
3
76°
53°
4
75°
58°
5
74°
62°
6
81°
61°
7
83°
62°
8
82°
60°
9
82°
57°
10
74°
60°
11
73°
59°
12
72°
60°
13
81°
57°
14
80°
55°
15
Hist. Avg.
76°
58°
16
Hist. Avg.
76°
57°
17
Hist. Avg.
75°
57°
18
Hist. Avg.
75°
56°
19
Hist. Avg.
74°
56°
20
Hist. Avg.
74°
55°
21
Hist. Avg.
74°
55°
22
Hist. Avg.
73°
55°
23
Hist. Avg.
73°
54°
24
Hist. Avg.
72°
54°
25
Hist. Avg.
72°
53°
26
Hist. Avg.
72°
53°
27
Hist. Avg.
71°
52°
28
Hist. Avg.
71°
52°
29
Hist. Avg.
70°
52°
30
Hist. Avg.
70°
51°
1
Hist. Avg.
69°
51°
2
Hist. Avg.
69°
50°
3
Hist. Avg.
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Elmhurst
Elmhurst's September 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 53° and 62°. The average high for September is 78° with an average low of 59°. 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 Elmhurst. See also: October | November | December.
