S
M
T
W
T
F
S
26
83°
69°
27
84°
69°
28
85°
68°
29
86°
68°
30
87°
63°
31
81°
61°
1
80°
64°
2
80°
67°
3
82°
67°
4
83°
66°
5
86°
68°
6
87°
68°
7
83°
66°
8
82°
63°
9
83°
65°
10
83°
62°
11
84°
67°
12
87°
68°
13
90°
67°
14
89°
68°
15
88°
67°
16
90°
68°
17
89°
60°
18
85°
59°
19
82°
58°
20
80°
58°
21
81°
59°
22
81°
59°
23
82°
60°
24
82°
59°
25
84°
59°
26
85°
60°
27
87°
58°
28
82°
58°
29
81°
59°
30
81°
58°
31
83°
61°
1
85°
58°
2
81°
57°
3
80°
63°
4
86°
64°
5
86°
64°
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 80° to 90°, with overnight lows between 57° and 69°. The average high for August is 84° with an average low of 63°. 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.