S
M
T
W
T
F
S
26
46°
28°
27
44°
38°
28
42°
35°
29
42°
27°
30
41°
24°
1
44°
35°
2
43°
35°
3
46°
33°
4
49°
35°
5
47°
37°
6
40°
31°
7
41°
29°
8
46°
26°
9
52°
31°
10
54°
33°
11
45°
34°
12
49°
32°
13
56°
35°
14
53°
31°
15
45°
34°
16
49°
36°
17
49°
37°
18
47°
33°
19
50°
34°
20
49°
28°
21
52°
31°
22
54°
28°
23
62°
31°
24
52°
31°
25
52°
32°
26
55°
31°
27
56°
33°
28
60°
30°
29
62°
33°
30
62°
32°
31
55°
31°
1
56°
32°
2
56°
32°
3
57°
33°
4
57°
36°
5
58°
36°
6
57°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Colorado
Colorado's May 2026 forecast shows daily high temperatures ranging from 45° to 62°, with overnight lows between 28° and 37°. The average high for May is 54° with an average low of 33°. 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 Colorado. See also: June | July | August.
