S
M
T
W
T
F
S
26
68°
35°
27
59°
37°
28
60°
41°
29
69°
35°
30
78°
41°
1
71°
45°
2
67°
46°
3
88°
46°
4
73°
51°
5
65°
47°
6
70°
51°
7
71°
48°
8
68°
45°
9
78°
43°
10
70°
49°
11
79°
44°
12
78°
47°
13
63°
51°
14
62°
45°
15
60°
39°
16
59°
42°
17
67°
44°
18
72°
43°
19
72°
46°
20
75°
48°
21
75°
47°
22
74°
46°
23
77°
49°
24
76°
50°
25
67°
47°
26
68°
48°
27
72°
49°
28
72°
48°
29
74°
50°
30
72°
49°
31
68°
45°
1
75°
53°
2
78°
54°
3
76°
53°
4
75°
50°
5
70°
46°
6
76°
53°
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 67° to 78°, with overnight lows between 43° and 54°. The average high for May is 73° with an average low of 48°. 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.