S
M
T
W
T
F
S
26
60°
48°
27
61°
47°
28
63°
43°
29
67°
46°
30
61°
49°
1
63°
49°
2
61°
53°
3
63°
49°
4
62°
48°
5
61°
48°
6
70°
48°
7
60°
53°
8
61°
51°
9
62°
49°
10
64°
50°
11
65°
51°
12
60°
50°
13
63°
50°
14
63°
47°
15
58°
50°
16
64°
50°
17
66°
51°
18
64°
50°
19
67°
52°
20
75°
53°
21
67°
55°
22
64°
54°
23
65°
56°
24
63°
57°
25
65°
56°
26
64°
54°
27
67°
55°
28
66°
53°
29
63°
52°
30
65°
55°
31
69°
56°
1
69°
56°
2
70°
57°
3
70°
56°
4
64°
53°
5
65°
56°
6
69°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Los Osos
Los Osos's May 2026 forecast shows daily high temperatures ranging from 58° to 75°, with overnight lows between 50° and 57°. The average high for May is 66° with an average low of 54°. 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 Los Osos. See also: June | July | August.
