S
M
T
W
T
F
S
30
91°
82°
31
89°
79°
1
92°
81°
2
93°
80°
3
92°
76°
4
88°
77°
5
92°
77°
6
93°
77°
7
95°
81°
8
94°
81°
9
91°
80°
10
N/A
11
88°
76°
12
87°
76°
13
89°
78°
14
91°
77°
15
93°
79°
16
90°
78°
17
92°
77°
18
91°
76°
19
90°
75°
20
88°
71°
21
87°
71°
22
88°
72°
23
87°
73°
24
88°
72°
25
88°
75°
26
85°
75°
27
86°
74°
28
87°
74°
29
88°
75°
30
88°
74°
1
89°
74°
2
86°
73°
3
85°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in New Orleans
New Orleans's September 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 71° and 79°. The average high for September is 88° with an average low of 75°. 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 New Orleans. See also: October | November | December.