S
M
T
W
T
F
S
26
72°
55°
27
73°
54°
28
70°
46°
29
82°
55°
30
75°
57°
1
66°
55°
2
59°
46°
3
70°
45°
4
79°
43°
5
81°
46°
6
82°
59°
7
79°
57°
8
73°
50°
9
75°
57°
10
86°
57°
11
82°
55°
12
72°
46°
13
81°
48°
14
79°
52°
15
79°
48°
16
88°
50°
17
91°
59°
18
91°
63°
19
94°
64°
20
94°
65°
21
92°
68°
22
85°
67°
23
83°
67°
24
88°
67°
25
87°
68°
26
88°
67°
27
87°
66°
28
84°
64°
29
85°
63°
30
82°
63°
31
83°
62°
1
87°
63°
2
88°
67°
3
89°
66°
4
83°
67°
5
83°
67°
6
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Hartsville
Hartsville's May 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 62° and 68°. The average high for May is 87° with an average low of 66°. 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 Hartsville. See also: June | July | August.
