S
M
T
W
T
F
S
26
63°
31°
27
70°
39°
28
63°
35°
29
57°
36°
30
44°
40°
1
48°
33°
2
40°
30°
3
48°
34°
4
50°
28°
5
75°
42°
6
55°
42°
7
51°
38°
8
49°
35°
9
58°
33°
10
57°
39°
11
52°
34°
12
49°
31°
13
55°
30°
14
57°
40°
15
62°
48°
16
74°
49°
17
70°
49°
18
58°
42°
19
81°
47°
20
81°
48°
21
54°
39°
22
61°
35°
23
65°
38°
24
60°
43°
25
57°
50°
26
77°
57°
27
70°
48°
28
60°
43°
29
54°
42°
30
58°
42°
31
64°
41°
1
61°
47°
2
69°
49°
3
73°
53°
4
70°
52°
5
71°
53°
6
70°
48°
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 54° to 77°, with overnight lows between 41° and 57°. The average high for May is 65° with an average low of 48°. 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.
