S
M
T
W
T
F
S
26
87°
72°
27
94°
74°
28
99°
77°
29
94°
72°
30
92°
67°
31
89°
66°
1
90°
68°
2
86°
67°
3
87°
66°
4
90°
66°
5
92°
68°
6
89°
68°
7
91°
68°
8
88°
70°
9
89°
70°
10
88°
70°
11
88°
69°
12
89°
71°
13
88°
70°
14
91°
70°
15
90°
70°
16
88°
69°
17
88°
70°
18
90°
70°
19
90°
69°
20
91°
70°
21
86°
69°
22
86°
67°
23
89°
69°
24
91°
70°
25
90°
69°
26
90°
70°
27
91°
70°
28
92°
69°
29
92°
70°
30
91°
70°
31
92°
69°
1
90°
68°
2
89°
67°
3
88°
66°
4
85°
66°
5
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Irmo
Irmo's August 2026 forecast shows daily high temperatures ranging from 85° to 99°, with overnight lows between 66° and 77°. The average high for August is 90° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Irmo. See also: September | October | November.
