S
M
T
W
T
F
S
30
98°
75°
31
98°
76°
1
81°
78°
2
92°
78°
3
88°
77°
4
93°
75°
5
92°
75°
6
94°
74°
7
95°
76°
8
93°
75°
9
92°
76°
10
92°
75°
11
90°
76°
12
89°
74°
13
92°
75°
14
91°
76°
15
93°
75°
16
92°
74°
17
94°
73°
18
93°
72°
19
87°
65°
20
88°
71°
21
87°
69°
22
87°
69°
23
88°
62°
24
90°
72°
25
88°
71°
26
87°
70°
27
86°
71°
28
87°
70°
29
88°
70°
30
87°
71°
1
88°
70°
2
86°
70°
3
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Charles
Lake Charles's September 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 62° and 76°. The average high for September is 89° with an average low of 71°. 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 Lake Charles. See also: October | November | December.
