S
M
T
W
T
F
S
30
95°
77°
31
94°
78°
1
95°
78°
2
95°
77°
3
94°
79°
4
95°
78°
5
94°
77°
6
94°
77°
7
93°
73°
8
90°
74°
9
91°
74°
10
93°
76°
11
92°
73°
12
92°
74°
13
91°
75°
14
92°
76°
15
91°
75°
16
91°
74°
17
92°
72°
18
91°
74°
19
88°
75°
20
90°
70°
21
88°
70°
22
85°
71°
23
85°
73°
24
86°
74°
25
86°
74°
26
90°
73°
27
89°
73°
28
89°
72°
29
88°
73°
30
86°
72°
1
87°
71°
2
88°
66°
3
84°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Metairie
Metairie's September 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 66° and 79°. The average high for September is 90° with an average low of 74°. 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 Metairie. See also: October | November | December.