S
M
T
W
T
F
S
26
81°
61°
27
81°
60°
28
82°
58°
29
81°
63°
30
83°
64°
31
81°
58°
1
81°
64°
2
84°
65°
3
83°
58°
4
82°
57°
5
81°
58°
6
82°
57°
7
82°
59°
8
80°
57°
9
80°
62°
10
85°
61°
11
80°
58°
12
84°
63°
13
86°
64°
14
80°
64°
15
83°
63°
16
86°
56°
17
83°
56°
18
79°
57°
19
78°
61°
20
78°
56°
21
79°
55°
22
78°
60°
23
79°
61°
24
84°
62°
25
86°
61°
26
86°
54°
27
82°
53°
28
76°
53°
29
77°
54°
30
77°
56°
31
80°
60°
1
82°
60°
2
83°
58°
3
82°
55°
4
82°
60°
5
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Columbia
Columbia's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 53° and 65°. The average high for August is 81° 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 Columbia. See also: September | October | November.