S
M
T
W
T
F
S
30
97°
73°
31
98°
73°
1
96°
75°
2
98°
79°
3
97°
78°
4
94°
78°
5
95°
75°
6
92°
76°
7
97°
74°
8
95°
74°
9
92°
75°
10
94°
75°
11
96°
75°
12
99°
76°
13
92°
76°
14
92°
76°
15
92°
76°
16
93°
74°
17
93°
72°
18
95°
71°
19
97°
73°
20
96°
71°
21
93°
68°
22
95°
69°
23
96°
69°
24
95°
68°
25
92°
68°
26
91°
71°
27
87°
71°
28
89°
71°
29
90°
71°
30
91°
70°
1
90°
70°
2
89°
69°
3
87°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Louise
Louise's September 2026 forecast shows daily high temperatures ranging from 87° to 99°, with overnight lows between 68° and 76°. The average high for September is 92° 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 Louise. See also: October | November | December.
