S
M
T
W
T
F
S
26
59°
33°
27
72°
32°
28
66°
53°
29
60°
44°
30
49°
36°
1
53°
32°
2
47°
37°
3
55°
34°
4
74°
45°
5
72°
46°
6
47°
41°
7
53°
33°
8
54°
35°
9
65°
35°
10
55°
35°
11
53°
31°
12
57°
29°
13
69°
43°
14
51°
41°
15
62°
42°
16
77°
38°
17
77°
56°
18
89°
60°
19
86°
64°
20
75°
46°
21
57°
38°
22
65°
35°
23
57°
49°
24
58°
49°
25
67°
49°
26
N/A
27
72°
51°
28
64°
46°
29
65°
49°
30
61°
41°
31
65°
45°
1
67°
45°
2
69°
50°
3
72°
54°
4
74°
54°
5
75°
57°
6
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Palermo
Palermo's May 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 41° and 57°. The average high for May is 69° with an average low of 50°. 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 Palermo. See also: June | July | August.