S
M
T
W
T
F
S
26
87°
72°
27
87°
75°
28
86°
73°
29
86°
73°
30
79°
67°
1
68°
54°
2
71°
48°
3
76°
53°
4
80°
62°
5
83°
71°
6
88°
68°
7
77°
58°
8
78°
64°
9
77°
66°
10
85°
69°
11
85°
71°
12
86°
69°
13
85°
67°
14
82°
66°
15
87°
71°
16
86°
71°
17
86°
70°
18
87°
71°
19
88°
72°
20
87°
72°
21
87°
71°
22
86°
71°
23
84°
72°
24
85°
72°
25
83°
71°
26
84°
72°
27
85°
70°
28
86°
72°
29
87°
72°
30
88°
73°
31
88°
72°
1
89°
72°
2
89°
73°
3
88°
74°
4
90°
74°
5
89°
72°
6
87°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lafayette
Lafayette's May 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 48° and 74°. The average high for May is 84° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Lafayette. See also: June | July | August.