S
M
T
W
T
F
S
26
58°
43°
27
70°
39°
28
57°
47°
29
57°
51°
30
65°
43°
1
63°
37°
2
57°
43°
3
61°
40°
4
74°
38°
5
82°
54°
6
72°
55°
7
66°
50°
8
68°
40°
9
62°
49°
10
68°
49°
11
63°
45°
12
68°
38°
13
71°
52°
14
58°
49°
15
71°
49°
16
81°
48°
17
86°
59°
18
94°
63°
19
93°
68°
20
88°
66°
21
67°
54°
22
65°
53°
23
53°
48°
24
61°
50°
25
78°
59°
26
82°
66°
27
83°
64°
28
77°
55°
29
78°
55°
30
74°
51°
31
71°
51°
1
69°
51°
2
72°
51°
3
71°
56°
4
73°
56°
5
82°
61°
6
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Catalina
Catalina's May 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 51° and 66°. The average high for May is 76° with an average low of 57°. 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 Catalina. See also: June | July | August.
