S
M
T
W
T
F
S
26
72°
45°
27
72°
46°
28
79°
48°
29
81°
54°
30
79°
56°
1
68°
55°
2
68°
46°
3
68°
45°
4
70°
46°
5
73°
50°
6
77°
55°
7
73°
63°
8
77°
55°
9
82°
55°
10
81°
57°
11
82°
55°
12
79°
55°
13
75°
55°
14
70°
50°
15
72°
59°
16
75°
55°
17
70°
54°
18
70°
52°
19
73°
50°
20
75°
48°
21
77°
50°
22
81°
54°
23
82°
55°
24
81°
59°
25
82°
59°
26
N/A
27
83°
60°
28
85°
59°
29
85°
60°
30
80°
60°
31
80°
61°
1
83°
61°
2
76°
64°
3
75°
63°
4
77°
67°
5
77°
66°
6
76°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Castello
Castello's May 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 59° and 67°. The average high for May is 80° with an average low of 62°. 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 Castello. See also: June | July | August.
