S
M
T
W
T
F
S
26
89°
68°
27
84°
62°
28
78°
59°
29
78°
62°
30
79°
64°
31
82°
64°
1
79°
65°
2
79°
65°
3
83°
63°
4
78°
58°
5
80°
64°
6
83°
65°
7
82°
62°
8
78°
64°
9
79°
58°
10
80°
60°
11
84°
64°
12
84°
65°
13
85°
62°
14
77°
58°
15
80°
60°
16
82°
63°
17
76°
59°
18
83°
60°
19
84°
63°
20
84°
57°
21
75°
54°
22
75°
56°
23
82°
64°
24
83°
62°
25
84°
57°
26
82°
52°
27
75°
51°
28
73°
51°
29
74°
53°
30
77°
55°
31
79°
56°
1
79°
50°
2
74°
50°
3
70°
51°
4
70°
50°
5
71°
49°
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 70° to 89°, with overnight lows between 49° and 68°. The average high for August is 79° with an average low of 59°. 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.