S
M
T
W
T
F
S
26
79°
59°
27
70°
55°
28
67°
52°
29
82°
60°
30
74°
60°
1
66°
56°
2
65°
48°
3
70°
41°
4
77°
46°
5
80°
52°
6
78°
64°
7
77°
56°
8
71°
55°
9
80°
56°
10
81°
59°
11
78°
50°
12
74°
53°
13
74°
53°
14
76°
50°
15
75°
55°
16
82°
59°
17
83°
62°
18
85°
63°
19
84°
64°
20
84°
63°
21
85°
59°
22
81°
62°
23
76°
62°
24
77°
61°
25
78°
62°
26
79°
63°
27
79°
60°
28
80°
59°
29
80°
63°
30
78°
64°
31
77°
63°
1
79°
65°
2
82°
64°
3
82°
65°
4
81°
66°
5
81°
66°
6
82°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Clemson
Clemson's May 2026 forecast shows daily high temperatures ranging from 71° to 85°, with overnight lows between 50° and 66°. The average high for May is 79° with an average low of 60°. 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 Clemson. See also: June | July | August.
