S
M
T
W
T
F
S
26
87°
72°
27
87°
75°
28
86°
73°
29
86°
73°
30
79°
67°
1
67°
54°
2
73°
52°
3
78°
50°
4
77°
52°
5
82°
62°
6
85°
73°
7
78°
60°
8
74°
70°
9
79°
69°
10
84°
68°
11
83°
62°
12
81°
60°
13
85°
67°
14
86°
68°
15
85°
67°
16
87°
70°
17
84°
72°
18
88°
72°
19
88°
71°
20
89°
72°
21
91°
71°
22
85°
72°
23
86°
72°
24
87°
71°
25
86°
72°
26
85°
72°
27
85°
71°
28
84°
72°
29
85°
72°
30
85°
71°
31
86°
70°
1
86°
72°
2
87°
73°
3
85°
72°
4
84°
74°
5
84°
74°
6
86°
74°
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 74° to 91°, with overnight lows between 60° and 74°. The average high for May is 85° with an average low of 70°. 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.