S
M
T
W
T
F
S
26
91°
74°
27
93°
77°
28
97°
76°
29
95°
81°
30
94°
76°
31
94°
74°
1
87°
75°
2
94°
77°
3
87°
72°
4
90°
74°
5
94°
73°
6
93°
72°
7
91°
72°
8
94°
73°
9
92°
74°
10
92°
76°
11
96°
71°
12
93°
72°
13
97°
75°
14
92°
76°
15
97°
73°
16
97°
76°
17
100°
78°
18
98°
73°
19
100°
71°
20
101°
72°
21
93°
71°
22
95°
69°
23
97°
73°
24
93°
72°
25
94°
73°
26
92°
72°
27
93°
70°
28
92°
73°
29
92°
72°
30
90°
72°
31
91°
71°
1
87°
74°
2
86°
73°
3
87°
72°
4
86°
68°
5
86°
68°
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 86° to 101°, with overnight lows between 68° and 74°. The average high for August is 92° with an average low of 72°. 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.