S
M
T
W
T
F
S
26
82°
60°
27
78°
51°
28
77°
46°
29
86°
59°
30
84°
60°
1
70°
55°
2
62°
40°
3
75°
46°
4
81°
52°
5
83°
58°
6
86°
67°
7
81°
49°
8
74°
47°
9
79°
55°
10
81°
61°
11
78°
59°
12
79°
56°
13
80°
58°
14
81°
59°
15
83°
71°
16
79°
58°
17
80°
60°
18
81°
64°
19
82°
64°
20
86°
65°
21
85°
65°
22
81°
59°
23
79°
58°
24
79°
59°
25
81°
62°
26
82°
62°
27
80°
60°
28
81°
61°
29
81°
62°
30
83°
63°
31
82°
65°
1
84°
68°
2
85°
67°
3
83°
68°
4
83°
68°
5
85°
69°
6
86°
69°
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 62° to 86°, with overnight lows between 40° and 71°. The average high for May is 81° with an average low of 60°. 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.
