S
M
T
W
T
F
S
26
76°
48°
27
82°
48°
28
78°
60°
29
74°
54°
30
64°
42°
1
68°
39°
2
58°
33°
3
65°
48°
4
78°
58°
5
74°
61°
6
63°
48°
7
60°
37°
8
60°
46°
9
67°
50°
10
68°
48°
11
65°
50°
12
66°
49°
13
70°
54°
14
73°
54°
15
70°
51°
16
75°
55°
17
77°
56°
18
77°
56°
19
78°
57°
20
79°
56°
21
75°
50°
22
72°
48°
23
70°
48°
24
71°
50°
25
72°
52°
26
73°
50°
27
72°
50°
28
74°
51°
29
75°
52°
30
76°
58°
31
78°
60°
1
76°
59°
2
77°
56°
3
76°
56°
4
77°
57°
5
78°
60°
6
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Columbia
Columbia's May 2026 forecast shows daily high temperatures ranging from 58° to 83°, with overnight lows between 33° and 62°. The average high for May is 72° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Columbia. See also: June | July | August.