S
M
T
W
T
F
S
30
87°
65°
31
87°
65°
1
86°
64°
2
87°
65°
3
87°
64°
4
86°
64°
5
86°
63°
6
85°
64°
7
87°
64°
8
87°
63°
9
86°
64°
10
87°
64°
11
87°
63°
12
86°
64°
13
86°
64°
14
84°
61°
15
86°
61°
16
85°
59°
17
84°
60°
18
85°
59°
19
86°
60°
20
86°
59°
21
84°
58°
22
83°
59°
23
82°
58°
24
79°
58°
25
75°
57°
26
79°
57°
27
81°
56°
28
80°
56°
29
81°
55°
30
81°
56°
1
80°
50°
2
75°
45°
3
70°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Glenview
Glenview's September 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 44° and 65°. The average high for September is 84° with an average low of 60°. 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 Glenview. See also: October | November | December.