S
M
T
W
T
F
S
26
56°
38°
27
54°
35°
28
61°
38°
29
58°
37°
30
49°
33°
1
64°
26°
2
73°
29°
3
75°
39°
4
75°
38°
5
49°
32°
6
43°
31°
7
68°
42°
8
70°
48°
9
78°
43°
10
76°
48°
11
89°
52°
12
82°
51°
13
87°
56°
14
82°
53°
15
76°
52°
16
78°
54°
17
83°
54°
18
79°
53°
19
82°
53°
20
75°
45°
21
67°
44°
22
68°
46°
23
69°
45°
24
70°
46°
25
70°
42°
26
71°
42°
27
76°
47°
28
78°
49°
29
76°
47°
30
72°
46°
31
75°
48°
1
75°
48°
2
79°
50°
3
82°
52°
4
80°
49°
5
71°
47°
6
73°
48°
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 89°, with overnight lows between 42° and 56°. The average high for May is 76° 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.