S
M
T
W
T
F
S
26
54°
40°
27
66°
40°
28
64°
41°
29
62°
45°
30
58°
46°
1
64°
42°
2
59°
46°
3
58°
42°
4
71°
48°
5
77°
51°
6
66°
53°
7
62°
46°
8
60°
43°
9
64°
48°
10
68°
50°
11
60°
47°
12
65°
40°
13
68°
46°
14
65°
51°
15
65°
47°
16
77°
46°
17
87°
62°
18
84°
62°
19
93°
64°
20
89°
64°
21
64°
54°
22
64°
52°
23
54°
49°
24
56°
49°
25
75°
55°
26
81°
64°
27
84°
64°
28
77°
56°
29
71°
52°
30
71°
48°
31
74°
53°
1
75°
54°
2
76°
53°
3
79°
57°
4
80°
58°
5
83°
59°
6
82°
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 71° to 84°, with overnight lows between 48° and 64°. The average high for May is 78° 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 Greenville. See also: June | July | August.
