S
M
T
W
T
F
S
30
92°
57°
31
91°
55°
1
91°
56°
2
92°
57°
3
95°
58°
4
95°
60°
5
94°
60°
6
96°
59°
7
96°
60°
8
95°
60°
9
95°
59°
10
90°
58°
11
88°
59°
12
93°
60°
13
94°
59°
14
95°
59°
15
93°
58°
16
90°
57°
17
89°
58°
18
91°
57°
19
92°
58°
20
Hist. Avg.
88°
56°
21
Hist. Avg.
88°
55°
22
Hist. Avg.
88°
55°
23
Hist. Avg.
88°
55°
24
Hist. Avg.
87°
55°
25
Hist. Avg.
87°
54°
26
Hist. Avg.
87°
54°
27
Hist. Avg.
86°
54°
28
Hist. Avg.
86°
54°
29
Hist. Avg.
86°
53°
30
Hist. Avg.
85°
53°
1
Hist. Avg.
85°
53°
2
Hist. Avg.
85°
53°
3
Hist. Avg.
84°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in La Grange
La Grange's September 2026 forecast shows daily high temperatures ranging from 88° to 96°, with overnight lows between 55° and 60°. The average high for September is 93° 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 La Grange. See also: October | November | December.
