S
M
T
W
T
F
S
26
79°
61°
27
72°
54°
28
66°
52°
29
82°
59°
30
N/A
1
68°
54°
2
63°
45°
3
68°
44°
4
74°
51°
5
76°
57°
6
75°
51°
7
74°
44°
8
67°
46°
9
72°
54°
10
71°
56°
11
75°
55°
12
77°
57°
13
76°
56°
14
81°
59°
15
80°
61°
16
81°
61°
17
79°
60°
18
76°
61°
19
77°
61°
20
81°
62°
21
81°
62°
22
82°
61°
23
82°
63°
24
81°
63°
25
81°
62°
26
79°
64°
27
79°
63°
28
76°
64°
29
78°
64°
30
80°
63°
31
80°
64°
1
82°
64°
2
83°
65°
3
84°
65°
4
83°
62°
5
76°
60°
6
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Simpsonville
Simpsonville's May 2026 forecast shows daily high temperatures ranging from 63° to 84°, with overnight lows between 44° and 65°. The average high for May is 77° with an average low of 58°. 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 Simpsonville. See also: June | July | August.
