S
M
T
W
T
F
S
26
80°
60°
27
73°
55°
28
72°
49°
29
85°
58°
30
77°
63°
1
68°
56°
2
61°
54°
3
72°
46°
4
81°
49°
5
83°
53°
6
88°
60°
7
80°
63°
8
73°
57°
9
75°
60°
10
86°
62°
11
85°
59°
12
72°
55°
13
81°
49°
14
80°
60°
15
79°
46°
16
88°
51°
17
91°
67°
18
93°
68°
19
93°
63°
20
93°
66°
21
92°
68°
22
85°
67°
23
82°
69°
24
82°
68°
25
89°
65°
26
88°
65°
27
86°
64°
28
85°
63°
29
80°
59°
30
84°
62°
31
84°
61°
1
85°
62°
2
84°
61°
3
83°
62°
4
84°
63°
5
86°
64°
6
88°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Irmo
Irmo's May 2026 forecast shows daily high temperatures ranging from 80° to 93°, with overnight lows between 59° and 69°. The average high for May is 86° with an average low of 64°. 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 Irmo. See also: June | July | August.
