S
M
T
W
T
F
S
26
63°
38°
27
71°
33°
28
70°
36°
29
67°
42°
30
56°
47°
1
63°
37°
2
56°
46°
3
55°
34°
4
70°
32°
5
79°
43°
6
70°
54°
7
62°
38°
8
62°
36°
9
63°
40°
10
70°
51°
11
61°
39°
12
64°
37°
13
66°
41°
14
60°
49°
15
63°
46°
16
76°
43°
17
88°
52°
18
88°
56°
19
93°
62°
20
89°
62°
21
65°
51°
22
65°
46°
23
60°
47°
24
57°
48°
25
75°
54°
26
81°
57°
27
84°
55°
28
74°
50°
29
73°
53°
30
66°
42°
31
71°
47°
1
71°
48°
2
74°
49°
3
78°
52°
4
80°
55°
5
80°
58°
6
78°
57°
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 66° to 84°, with overnight lows between 42° and 58°. The average high for May is 76° 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.
