S
M
T
W
T
F
S
26
71°
48°
27
69°
46°
28
75°
49°
29
72°
53°
30
61°
42°
1
66°
38°
2
57°
39°
3
61°
32°
4
73°
40°
5
74°
42°
6
71°
57°
7
60°
45°
8
68°
33°
9
72°
40°
10
78°
43°
11
61°
41°
12
71°
35°
13
71°
42°
14
52°
44°
15
71°
39°
16
79°
46°
17
85°
53°
18
88°
55°
19
89°
58°
20
87°
55°
21
73°
59°
22
58°
52°
23
55°
50°
24
74°
52°
25
73°
63°
26
80°
64°
27
78°
62°
28
79°
50°
29
79°
53°
30
80°
50°
31
78°
47°
1
76°
48°
2
73°
50°
3
76°
53°
4
76°
53°
5
79°
57°
6
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Greenville
Greenville's May 2026 forecast shows daily high temperatures ranging from 73° to 80°, with overnight lows between 47° and 64°. The average high for May is 78° with an average low of 54°. 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 Greenville. See also: June | July | August.
