S
M
T
W
T
F
S
26
78°
56°
27
79°
60°
28
83°
63°
29
82°
60°
30
86°
64°
1
87°
64°
2
87°
63°
3
86°
62°
4
87°
64°
5
87°
65°
6
86°
66°
7
87°
66°
8
88°
65°
9
88°
67°
10
85°
66°
11
81°
66°
12
86°
61°
13
81°
65°
14
85°
68°
15
87°
69°
16
89°
68°
17
89°
70°
18
91°
69°
19
83°
67°
20
83°
70°
21
89°
71°
22
89°
70°
23
84°
70°
24
89°
71°
25
90°
72°
26
91°
72°
27
88°
71°
28
85°
69°
29
90°
67°
30
87°
67°
31
89°
67°
1
88°
66°
2
90°
67°
3
92°
68°
4
93°
67°
5
94°
69°
6
92°
70°
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 78° to 94°, with overnight lows between 56° and 72°. The average high for May is 87° with an average low of 67°. 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.
