S
M
T
W
T
F
S
30
90°
71°
31
87°
65°
1
91°
67°
2
93°
68°
3
92°
72°
4
91°
65°
5
92°
70°
6
86°
70°
7
92°
68°
8
80°
66°
9
81°
58°
10
85°
50°
11
89°
62°
12
73°
56°
13
63°
58°
14
88°
58°
15
70°
60°
16
64°
58°
17
79°
61°
18
91°
69°
19
73°
64°
20
64°
59°
21
69°
57°
22
N/A
23
69°
56°
24
63°
60°
25
63°
60°
26
76°
63°
27
71°
64°
28
73°
64°
29
70°
64°
30
69°
64°
1
69°
47°
2
69°
43°
3
79°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Elgin
Elgin's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Elgin. See also: October | November | December.
