S
M
T
W
T
F
S
26
86°
68°
27
90°
66°
28
86°
73°
29
82°
63°
30
82°
59°
31
84°
63°
1
78°
67°
2
77°
64°
3
81°
63°
4
83°
65°
5
87°
67°
6
88°
66°
7
86°
69°
8
85°
68°
9
86°
66°
10
85°
66°
11
85°
67°
12
83°
65°
13
85°
65°
14
86°
64°
15
79°
60°
16
80°
61°
17
89°
69°
18
89°
69°
19
90°
68°
20
89°
67°
21
87°
67°
22
88°
66°
23
89°
68°
24
89°
67°
25
85°
67°
26
86°
66°
27
85°
66°
28
84°
65°
29
86°
66°
30
85°
65°
31
86°
65°
1
87°
64°
2
86°
62°
3
81°
60°
4
83°
64°
5
86°
63°
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 90°, with overnight lows between 60° and 69°. The average high for August is 85° with an average low of 65°. 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.