S
M
T
W
T
F
S
26
69°
43°
27
67°
51°
28
62°
46°
29
52°
35°
30
53°
30°
1
50°
29°
2
60°
29°
3
71°
50°
4
78°
40°
5
56°
37°
6
53°
37°
7
57°
36°
8
62°
38°
9
63°
43°
10
63°
43°
11
64°
44°
12
67°
47°
13
67°
48°
14
63°
47°
15
69°
50°
16
68°
51°
17
69°
48°
18
69°
53°
19
71°
53°
20
69°
52°
21
68°
44°
22
63°
43°
23
64°
45°
24
64°
45°
25
65°
46°
26
65°
46°
27
64°
47°
28
65°
47°
29
67°
54°
30
67°
55°
31
68°
51°
1
73°
55°
2
75°
58°
3
75°
58°
4
78°
59°
5
78°
60°
6
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cascade Mountain
Cascade Mountain's May 2026 forecast shows daily high temperatures ranging from 53° to 78°, with overnight lows between 36° and 60°. The average high for May is 67° with an average low of 48°. 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 Cascade Mountain. See also: June | July | August.
