S
M
T
W
T
F
S
26
59°
45°
27
58°
43°
28
57°
43°
29
62°
40°
30
66°
45°
1
65°
43°
2
57°
51°
3
54°
48°
4
54°
46°
5
53°
43°
6
53°
39°
7
56°
44°
8
54°
44°
9
53°
39°
10
54°
36°
11
52°
43°
12
55°
44°
13
54°
43°
14
54°
41°
15
53°
39°
16
52°
38°
17
54°
44°
18
N/A
19
58°
49°
20
60°
48°
21
66°
53°
22
64°
51°
23
63°
49°
24
64°
52°
25
68°
54°
26
67°
53°
27
66°
51°
28
66°
50°
29
61°
48°
30
60°
49°
31
54°
50°
1
53°
52°
2
54°
51°
3
55°
53°
4
56°
53°
5
56°
52°
6
55°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Kilchattan
Kilchattan's May 2026 forecast shows daily high temperatures ranging from 53° to 68°, with overnight lows between 48° and 54°. The average high for May is 60° with an average low of 51°. 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 Kilchattan. See also: June | July | August.