S
M
T
W
T
F
S
26
77°
62°
27
63°
55°
28
74°
60°
29
75°
66°
30
75°
60°
1
70°
61°
2
64°
50°
3
71°
48°
4
77°
56°
5
81°
61°
6
83°
67°
7
80°
57°
8
77°
58°
9
80°
62°
10
78°
61°
11
80°
62°
12
81°
64°
13
82°
61°
14
85°
65°
15
85°
66°
16
84°
66°
17
85°
67°
18
83°
67°
19
82°
66°
20
86°
68°
21
87°
68°
22
86°
67°
23
86°
68°
24
85°
68°
25
86°
69°
26
85°
68°
27
85°
69°
28
84°
70°
29
81°
70°
30
82°
69°
31
85°
70°
1
86°
70°
2
85°
69°
3
86°
70°
4
88°
70°
5
84°
67°
6
81°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in North Charleston
North Charleston's May 2026 forecast shows daily high temperatures ranging from 64° to 88°, with overnight lows between 48° and 70°. The average high for May is 82° with an average low of 65°. 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 North Charleston. See also: June | July | August.
