S
M
T
W
T
F
S
26
67°
29°
27
69°
35°
28
72°
38°
29
78°
42°
30
78°
41°
1
80°
43°
2
84°
50°
3
89°
44°
4
85°
49°
5
87°
51°
6
83°
48°
7
83°
52°
8
77°
50°
9
80°
54°
10
77°
48°
11
79°
51°
12
85°
58°
13
83°
52°
14
82°
54°
15
80°
51°
16
77°
53°
17
77°
55°
18
78°
54°
19
71°
53°
20
80°
48°
21
69°
45°
22
67°
41°
23
71°
44°
24
76°
49°
25
77°
50°
26
73°
42°
27
68°
42°
28
72°
46°
29
71°
47°
30
73°
46°
31
78°
50°
1
80°
52°
2
80°
48°
3
70°
43°
4
69°
44°
5
72°
47°
6
70°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Osoyoos
Osoyoos's May 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 41° and 58°. The average high for May is 76° with an average low of 49°. 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 Osoyoos. See also: June | July | August.
