S
M
T
W
T
F
S
26
55°
48°
27
63°
44°
28
64°
54°
29
66°
52°
30
68°
47°
1
64°
49°
2
59°
40°
3
62°
44°
4
69°
50°
5
74°
56°
6
74°
52°
7
69°
50°
8
68°
47°
9
68°
51°
10
67°
52°
11
70°
52°
12
71°
56°
13
73°
56°
14
71°
52°
15
69°
51°
16
69°
50°
17
70°
49°
18
72°
50°
19
75°
58°
20
77°
57°
21
74°
54°
22
73°
52°
23
73°
53°
24
74°
59°
25
80°
60°
26
79°
57°
27
75°
54°
28
74°
54°
29
75°
55°
30
77°
59°
31
81°
61°
1
80°
62°
2
82°
63°
3
84°
64°
4
85°
63°
5
83°
58°
6
77°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kilmarnock
Kilmarnock's May 2026 forecast shows daily high temperatures ranging from 59° to 85°, with overnight lows between 40° and 64°. The average high for May is 73° with an average low of 54°. 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 Kilmarnock. See also: June | July | August.
