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
71°
44°
4
79°
50°
5
81°
57°
6
76°
65°
7
77°
50°
8
70°
51°
9
74°
50°
10
76°
56°
11
77°
53°
12
77°
56°
13
76°
56°
14
80°
57°
15
81°
58°
16
79°
57°
17
78°
57°
18
80°
61°
19
81°
61°
20
83°
62°
21
79°
57°
22
79°
55°
23
75°
54°
24
76°
56°
25
78°
58°
26
79°
56°
27
77°
56°
28
78°
57°
29
79°
59°
30
79°
60°
31
80°
62°
1
82°
65°
2
81°
64°
3
80°
65°
4
81°
62°
5
83°
65°
6
85°
66°
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 70° to 85°, with overnight lows between 44° and 66°. The average high for May is 78° with an average low of 58°. 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.
