S
M
T
W
T
F
S
26
83°
49°
27
85°
48°
28
83°
54°
29
74°
63°
30
74°
59°
31
82°
57°
1
86°
55°
2
83°
67°
3
77°
57°
4
82°
51°
5
85°
59°
6
84°
63°
7
83°
58°
8
81°
57°
9
82°
58°
10
77°
55°
11
76°
53°
12
75°
53°
13
74°
52°
14
73°
53°
15
74°
51°
16
70°
49°
17
73°
53°
18
71°
51°
19
71°
48°
20
73°
50°
21
70°
46°
22
72°
54°
23
76°
54°
24
77°
53°
25
70°
53°
26
76°
50°
27
72°
49°
28
69°
54°
29
73°
54°
30
76°
53°
31
76°
50°
1
72°
47°
2
67°
48°
3
67°
48°
4
68°
43°
5
69°
48°
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 67° to 85°, with overnight lows between 43° and 67°. The average high for August is 75° with an average low of 53°. 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.