S
M
T
W
T
F
S
26
81°
67°
27
83°
68°
28
87°
69°
29
87°
69°
30
86°
68°
31
87°
69°
1
85°
68°
2
87°
69°
3
88°
69°
4
89°
68°
5
86°
68°
6
87°
67°
7
88°
67°
8
82°
61°
9
80°
61°
10
80°
62°
11
82°
68°
12
81°
68°
13
85°
67°
14
87°
68°
15
86°
66°
16
82°
64°
17
81°
60°
18
81°
58°
19
83°
66°
20
86°
65°
21
87°
66°
22
86°
65°
23
87°
65°
24
81°
62°
25
80°
63°
26
79°
59°
27
79°
61°
28
80°
61°
29
80°
60°
30
83°
59°
31
85°
63°
1
85°
64°
2
83°
63°
3
85°
55°
4
78°
54°
5
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Columbus
Columbus's August 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 54° and 69°. The average high for August is 84° 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 August weather will actually feel in Columbus. See also: September | October | November.