S
M
T
W
T
F
S
27
83°
53°
28
84°
57°
29
87°
62°
30
87°
61°
1
89°
66°
2
88°
61°
3
85°
63°
4
82°
62°
5
81°
56°
6
75°
50°
7
71°
51°
8
75°
52°
9
78°
52°
10
77°
51°
11
80°
53°
12
80°
55°
13
80°
54°
14
77°
48°
15
70°
45°
16
72°
51°
17
73°
53°
18
74°
53°
19
79°
52°
20
78°
52°
21
78°
53°
22
77°
48°
23
68°
43°
24
67°
43°
25
73°
46°
26
76°
47°
27
77°
50°
28
71°
46°
29
73°
49°
30
76°
50°
31
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Irmo
Irmo's October 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 43° and 66°. The average high for October is 78° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Irmo. See also: November | December | January.
