S
M
T
W
T
F
S
26
79°
61°
27
66°
50°
28
77°
48°
29
81°
59°
30
77°
63°
1
70°
59°
2
63°
50°
3
72°
45°
4
79°
46°
5
79°
50°
6
86°
55°
7
79°
68°
8
75°
57°
9
79°
61°
10
86°
66°
11
88°
64°
12
72°
59°
13
77°
61°
14
82°
61°
15
81°
52°
16
86°
54°
17
90°
66°
18
90°
63°
19
91°
61°
20
90°
63°
21
90°
64°
22
90°
66°
23
88°
72°
24
86°
68°
25
84°
73°
26
90°
72°
27
90°
72°
28
90°
73°
29
88°
72°
30
86°
73°
31
72°
67°
1
84°
66°
2
75°
55°
3
81°
55°
4
84°
56°
5
87°
63°
6
89°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Harleyville
Harleyville's May 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 55° and 67°. The average high for May is 82° with an average low of 61°. 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 Harleyville. See also: June | July | August.
