S
M
T
W
T
F
S
26
73°
41°
27
75°
43°
28
75°
46°
29
77°
50°
30
59°
48°
1
57°
45°
2
63°
43°
3
68°
46°
4
75°
43°
5
70°
48°
6
64°
57°
7
66°
55°
8
59°
55°
9
72°
52°
10
70°
50°
11
77°
54°
12
79°
50°
13
70°
54°
14
70°
48°
15
70°
48°
16
66°
50°
17
64°
48°
18
70°
45°
19
68°
52°
20
72°
54°
21
72°
55°
22
73°
59°
23
75°
61°
24
77°
59°
25
77°
57°
26
82°
59°
27
N/A
28
86°
64°
29
79°
57°
30
81°
53°
31
85°
57°
1
84°
61°
2
84°
63°
3
84°
64°
4
81°
62°
5
82°
62°
6
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Castellaneta
Castellaneta's May 2026 forecast shows daily high temperatures ranging from 79° to 86°, with overnight lows between 53° and 64°. The average high for May is 83° with an average low of 61°. 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 Castellaneta. See also: June | July | August.
