S
M
T
W
T
F
S
30
90°
68°
31
86°
64°
1
82°
61°
2
88°
66°
3
90°
72°
4
88°
70°
5
82°
66°
6
73°
68°
7
81°
66°
8
88°
63°
9
81°
55°
10
81°
52°
11
88°
63°
12
73°
52°
13
72°
48°
14
63°
54°
15
72°
54°
16
75°
46°
17
68°
59°
18
63°
61°
19
61°
57°
20
66°
57°
21
61°
52°
22
66°
48°
23
N/A
24
63°
55°
25
70°
57°
26
N/A
27
68°
57°
28
70°
55°
29
66°
61°
30
75°
59°
1
68°
43°
2
64°
37°
3
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lafayette
Lafayette's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Lafayette. See also: October | November | December.
