S
M
T
W
T
F
S
26
63°
36°
27
73°
38°
28
68°
55°
29
62°
48°
30
53°
39°
1
57°
35°
2
49°
36°
3
57°
36°
4
74°
47°
5
74°
48°
6
49°
44°
7
57°
37°
8
56°
38°
9
63°
37°
10
59°
40°
11
55°
34°
12
60°
33°
13
69°
45°
14
51°
44°
15
64°
44°
16
80°
42°
17
83°
57°
18
91°
60°
19
87°
70°
20
77°
49°
21
61°
43°
22
66°
37°
23
54°
45°
24
59°
53°
25
73°
51°
26
79°
57°
27
77°
54°
28
66°
45°
29
63°
45°
30
64°
43°
31
63°
46°
1
68°
49°
2
70°
49°
3
68°
51°
4
71°
53°
5
69°
50°
6
67°
47°
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 54° to 79°, with overnight lows between 43° and 57°. The average high for May is 67° with an average low of 49°. 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.