S
M
T
W
T
F
S
26
53°
46°
27
73°
47°
28
70°
51°
29
56°
43°
30
52°
42°
1
47°
40°
2
46°
38°
3
63°
38°
4
75°
53°
5
69°
48°
6
51°
46°
7
55°
45°
8
56°
47°
9
68°
48°
10
59°
43°
11
54°
37°
12
61°
52°
13
61°
46°
14
58°
48°
15
65°
51°
16
69°
57°
17
72°
59°
18
73°
54°
19
72°
57°
20
73°
56°
21
76°
58°
22
75°
53°
23
75°
58°
24
74°
57°
25
77°
59°
26
77°
61°
27
78°
61°
28
78°
60°
29
79°
62°
30
78°
61°
31
78°
60°
1
70°
57°
2
70°
56°
3
72°
61°
4
79°
62°
5
75°
62°
6
76°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Parma
Parma's May 2026 forecast shows daily high temperatures ranging from 54° to 79°, with overnight lows between 37° and 62°. The average high for May is 71° with an average low of 56°. 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 Parma. See also: June | July | August.