S
M
T
W
T
F
S
30
93°
73°
31
93°
72°
1
91°
72°
2
90°
73°
3
89°
74°
4
91°
73°
5
90°
73°
6
89°
72°
7
90°
73°
8
90°
73°
9
91°
72°
10
92°
73°
11
92°
73°
12
91°
72°
13
91°
72°
14
90°
70°
15
87°
69°
16
87°
71°
17
89°
71°
18
90°
70°
19
86°
71°
20
87°
70°
21
86°
71°
22
88°
70°
23
89°
70°
24
88°
66°
25
86°
66°
26
89°
69°
27
88°
68°
28
89°
69°
29
Hist. Avg.
87°
67°
30
Hist. Avg.
87°
66°
1
Hist. Avg.
86°
66°
2
Hist. Avg.
86°
66°
3
Hist. Avg.
86°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lake Charles
Lake Charles's September 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 66° and 74°. 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.
