S
M
T
W
T
F
S
26
82°
71°
27
82°
72°
28
80°
73°
29
80°
74°
30
77°
74°
1
75°
62°
2
74°
65°
3
75°
67°
4
76°
67°
5
78°
72°
6
82°
72°
7
74°
66°
8
75°
67°
9
74°
72°
10
80°
73°
11
83°
72°
12
84°
73°
13
81°
72°
14
80°
70°
15
79°
73°
16
80°
73°
17
80°
72°
18
81°
74°
19
80°
74°
20
81°
73°
21
81°
74°
22
82°
74°
23
81°
73°
24
80°
74°
25
80°
75°
26
81°
75°
27
81°
74°
28
82°
75°
29
82°
75°
30
83°
76°
31
83°
76°
1
84°
75°
2
83°
76°
3
83°
77°
4
85°
77°
5
84°
76°
6
84°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fort Jackson
Fort Jackson's May 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 62° and 77°. The average high for May is 80° with an average low of 73°. 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 Fort Jackson. See also: June | July | August.
