S
M
T
W
T
F
S
26
84°
70°
27
88°
72°
28
79°
68°
29
66°
59°
30
63°
57°
1
63°
54°
2
75°
48°
3
81°
48°
4
79°
57°
5
84°
59°
6
59°
52°
7
72°
50°
8
77°
55°
9
84°
68°
10
77°
63°
11
77°
59°
12
79°
54°
13
86°
55°
14
88°
63°
15
88°
66°
16
84°
68°
17
86°
75°
18
88°
77°
19
81°
64°
20
81°
64°
21
75°
66°
22
84°
66°
23
81°
64°
24
84°
66°
25
86°
66°
26
84°
68°
27
79°
68°
28
86°
66°
29
90°
73°
30
88°
74°
31
92°
73°
1
92°
72°
2
93°
69°
3
89°
68°
4
87°
69°
5
86°
68°
6
88°
69°
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 86° to 93°, with overnight lows between 68° and 74°. The average high for May is 89° with an average low of 71°. 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.
