S
M
T
W
T
F
S
26
82°
60°
27
67°
52°
28
78°
51°
29
84°
61°
30
77°
61°
1
71°
58°
2
63°
49°
3
73°
46°
4
78°
48°
5
79°
54°
6
86°
60°
7
82°
70°
8
77°
58°
9
81°
62°
10
87°
67°
11
91°
65°
12
76°
58°
13
78°
61°
14
85°
52°
15
80°
57°
16
85°
66°
17
88°
68°
18
85°
66°
19
87°
69°
20
90°
71°
21
90°
72°
22
86°
71°
23
87°
66°
24
85°
68°
25
84°
68°
26
85°
69°
27
91°
71°
28
87°
69°
29
89°
70°
30
89°
71°
31
88°
70°
1
88°
70°
2
87°
71°
3
88°
70°
4
84°
70°
5
84°
69°
6
88°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Charleston Afb
Charleston Afb's May 2026 forecast shows daily high temperatures ranging from 80° to 91°, with overnight lows between 52° and 72°. The average high for May is 87° with an average low of 68°. 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 Charleston Afb. See also: June | July | August.
