S
M
T
W
T
F
S
26
70°
37°
27
62°
43°
28
60°
46°
29
69°
40°
30
73°
41°
1
74°
46°
2
80°
46°
3
82°
46°
4
84°
47°
5
72°
49°
6
64°
49°
7
67°
52°
8
65°
49°
9
69°
45°
10
70°
49°
11
72°
42°
12
80°
42°
13
65°
54°
14
63°
47°
15
58°
47°
16
57°
42°
17
68°
35°
18
69°
45°
19
66°
50°
20
72°
47°
21
78°
49°
22
78°
52°
23
73°
45°
24
61°
44°
25
60°
45°
26
65°
48°
27
66°
48°
28
65°
45°
29
64°
43°
30
63°
44°
31
66°
45°
1
66°
46°
2
68°
43°
3
64°
40°
4
67°
46°
5
63°
46°
6
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lake Cowichan
Lake Cowichan's May 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 40° and 52°. The average high for May is 67° with an average low of 46°. 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 Lake Cowichan. See also: June | July | August.
