S
M
T
W
T
F
S
26
84°
70°
27
89°
74°
28
84°
71°
29
71°
61°
30
64°
57°
1
59°
51°
2
74°
48°
3
82°
49°
4
80°
56°
5
84°
68°
6
75°
54°
7
71°
51°
8
80°
55°
9
84°
61°
10
80°
64°
11
77°
62°
12
81°
53°
13
86°
54°
14
89°
62°
15
88°
66°
16
86°
70°
17
88°
74°
18
88°
77°
19
85°
64°
20
77°
63°
21
74°
65°
22
84°
67°
23
83°
65°
24
85°
65°
25
87°
65°
26
86°
69°
27
76°
67°
28
83°
67°
29
87°
69°
30
88°
71°
31
88°
65°
1
83°
65°
2
85°
64°
3
82°
65°
4
81°
63°
5
84°
67°
6
87°
67°
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 76° to 88°, with overnight lows between 63° and 71°. The average high for May is 84° with an average low of 67°. 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.
