S
M
T
W
T
F
S
30
92°
74°
31
91°
75°
1
91°
74°
2
90°
75°
3
91°
75°
4
91°
74°
5
90°
73°
6
89°
74°
7
90°
76°
8
89°
75°
9
87°
75°
10
88°
74°
11
88°
74°
12
89°
75°
13
87°
75°
14
86°
74°
15
86°
75°
16
87°
74°
17
86°
74°
18
86°
73°
19
87°
70°
20
85°
69°
21
84°
71°
22
86°
73°
23
86°
73°
24
85°
72°
25
87°
73°
26
88°
72°
27
88°
72°
28
87°
71°
29
87°
71°
30
87°
71°
1
Hist. Avg.
85°
70°
2
Hist. Avg.
85°
69°
3
Hist. Avg.
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bayou L'Ourse
Bayou L'Ourse's September 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 69° and 76°. The average high for September is 88° with an average low of 73°. 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 Bayou L'Ourse. See also: October | November | December.
