S
M
T
W
T
F
S
30
95°
72°
31
94°
73°
1
88°
73°
2
89°
72°
3
93°
73°
4
90°
74°
5
87°
72°
6
90°
73°
7
91°
73°
8
95°
72°
9
93°
71°
10
92°
72°
11
91°
69°
12
89°
70°
13
90°
71°
14
89°
68°
15
85°
71°
16
86°
71°
17
87°
70°
18
87°
71°
19
85°
71°
20
84°
70°
21
84°
70°
22
83°
69°
23
86°
69°
24
86°
68°
25
88°
69°
26
88°
69°
27
89°
68°
28
89°
67°
29
88°
66°
30
89°
68°
1
88°
68°
2
85°
67°
3
84°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Opelousas
Opelousas's September 2026 forecast shows daily high temperatures ranging from 83° to 95°, with overnight lows between 66° and 74°. The average high for September is 88° with an average low of 70°. 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 Opelousas. See also: October | November | December.
