S
M
T
W
T
F
S
26
33°
21°
27
34°
21°
28
43°
20°
29
51°
27°
30
60°
26°
1
72°
41°
2
66°
38°
3
69°
37°
4
43°
31°
5
45°
25°
6
51°
21°
7
62°
23°
8
60°
33°
9
57°
27°
10
67°
23°
11
72°
45°
12
75°
40°
13
84°
38°
14
67°
48°
15
48°
29°
16
46°
28°
17
42°
33°
18
50°
31°
19
59°
31°
20
67°
36°
21
64°
42°
22
63°
43°
23
N/A
24
78°
47°
25
82°
52°
26
85°
56°
27
83°
62°
28
85°
58°
29
85°
58°
30
78°
58°
31
74°
53°
1
77°
52°
2
75°
49°
3
73°
50°
4
71°
50°
5
74°
51°
6
70°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Colonsay
Colonsay's May 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 46° and 62°. The average high for May is 78° with an average low of 53°. 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 Colonsay. See also: June | July | August.
