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
84°
60°
8
76°
49°
9
78°
52°
10
77°
57°
11
77°
49°
12
83°
44°
13
72°
51°
14
71°
45°
15
61°
42°
16
62°
40°
17
69°
48°
18
71°
42°
19
73°
44°
20
77°
52°
21
78°
42°
22
82°
48°
23
85°
55°
24
75°
48°
25
72°
48°
26
58°
47°
27
76°
52°
28
79°
54°
29
74°
46°
30
66°
41°
31
61°
39°
1
68°
45°
2
73°
47°
3
73°
46°
4
72°
46°
5
74°
47°
6
67°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Osoyoos 3
Osoyoos 3's May 2026 forecast shows daily high temperatures ranging from 58° to 79°, with overnight lows between 39° and 54°. The average high for May is 71° 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 Osoyoos 3. See also: June | July | August.