S
M
T
W
T
F
S
26
37°
32°
27
45°
32°
28
50°
36°
29
60°
41°
30
65°
47°
1
67°
49°
2
63°
51°
3
58°
43°
4
43°
37°
5
46°
37°
6
65°
41°
7
67°
53°
8
69°
52°
9
73°
56°
10
73°
56°
11
77°
58°
12
74°
56°
13
64°
51°
14
71°
54°
15
73°
50°
16
68°
49°
17
67°
47°
18
73°
55°
19
74°
52°
20
78°
54°
21
76°
54°
22
73°
49°
23
65°
46°
24
71°
49°
25
67°
51°
26
69°
50°
27
70°
43°
28
64°
39°
29
64°
39°
30
65°
40°
31
72°
44°
1
74°
45°
2
74°
48°
3
73°
47°
4
65°
41°
5
68°
46°
6
73°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Graniteville
Graniteville's May 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 39° and 55°. The average high for May is 70° with an average low of 47°. 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 Graniteville. See also: June | July | August.
