S
M
T
W
T
F
S
26
84°
55°
27
83°
58°
28
80°
63°
29
75°
59°
30
66°
49°
1
67°
45°
2
66°
43°
3
69°
38°
4
81°
48°
5
77°
56°
6
72°
54°
7
67°
48°
8
75°
41°
9
79°
52°
10
86°
51°
11
74°
50°
12
80°
45°
13
82°
60°
14
72°
48°
15
81°
44°
16
85°
60°
17
91°
58°
18
91°
62°
19
92°
71°
20
84°
69°
21
82°
46°
22
78°
68°
23
79°
68°
24
78°
68°
25
80°
67°
26
81°
70°
27
N/A
28
87°
63°
29
83°
67°
30
76°
61°
31
83°
66°
1
84°
56°
2
84°
57°
3
83°
61°
4
80°
62°
5
80°
62°
6
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Hartsville
Hartsville's May 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 56° and 67°. The average high for May is 82° with an average low of 62°. 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.
