S
M
T
W
T
F
S
30
98°
75°
31
98°
76°
1
81°
78°
2
88°
76°
3
91°
75°
4
90°
76°
5
91°
75°
6
90°
75°
7
94°
75°
8
93°
76°
9
92°
75°
10
91°
74°
11
90°
75°
12
92°
74°
13
90°
73°
14
91°
73°
15
93°
74°
16
85°
72°
17
86°
73°
18
87°
72°
19
89°
71°
20
90°
73°
21
88°
73°
22
90°
72°
23
89°
72°
24
88°
71°
25
85°
72°
26
84°
71°
27
84°
67°
28
82°
63°
29
82°
62°
30
81°
62°
1
82°
63°
2
84°
65°
3
81°
61°
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 81° to 94°, with overnight lows between 61° and 76°. The average high for September is 88° 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.
