S
M
T
W
T
F
S
30
91°
69°
31
92°
68°
1
96°
68°
2
99°
69°
3
99°
72°
4
99°
72°
5
99°
72°
6
94°
69°
7
88°
70°
8
91°
69°
9
90°
69°
10
92°
65°
11
93°
66°
12
90°
68°
13
92°
66°
14
94°
66°
15
95°
66°
16
93°
70°
17
95°
66°
18
96°
69°
19
95°
66°
20
93°
68°
21
91°
65°
22
82°
66°
23
77°
60°
24
77°
59°
25
78°
54°
26
78°
53°
27
75°
52°
28
76°
55°
29
78°
54°
30
77°
56°
1
74°
54°
2
76°
51°
3
75°
57°
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 74° to 95°, with overnight lows between 51° and 68°. The average high for September is 80° with an average low of 58°. 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.