S
M
T
W
T
F
S
26
45°
30°
27
52°
30°
28
46°
30°
29
50°
29°
30
49°
26°
1
52°
30°
2
62°
27°
3
62°
31°
4
57°
35°
5
59°
35°
6
44°
28°
7
57°
22°
8
68°
34°
9
67°
35°
10
68°
31°
11
75°
35°
12
78°
41°
13
81°
41°
14
73°
43°
15
74°
35°
16
73°
42°
17
63°
37°
18
53°
33°
19
55°
34°
20
60°
31°
21
66°
29°
22
62°
30°
23
67°
29°
24
71°
38°
25
73°
35°
26
67°
45°
27
73°
44°
28
76°
42°
29
70°
33°
30
59°
35°
31
65°
37°
1
69°
43°
2
70°
47°
3
68°
48°
4
74°
47°
5
73°
49°
6
74°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Aspen
Aspen's May 2026 forecast shows daily high temperatures ranging from 59° to 76°, with overnight lows between 33° and 49°. The average high for May is 70° with an average low of 43°. 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 Aspen. See also: June | July | August.