S
M
T
W
T
F
S
26
68°
28°
27
70°
39°
28
68°
38°
29
72°
38°
30
77°
39°
1
79°
38°
2
86°
49°
3
87°
47°
4
89°
50°
5
84°
51°
6
86°
52°
7
82°
50°
8
80°
45°
9
80°
48°
10
85°
49°
11
79°
47°
12
80°
49°
13
84°
50°
14
80°
48°
15
81°
51°
16
76°
49°
17
77°
48°
18
75°
50°
19
74°
46°
20
69°
44°
21
72°
51°
22
71°
47°
23
75°
50°
24
79°
53°
25
81°
53°
26
76°
48°
27
72°
50°
28
78°
53°
29
78°
54°
30
80°
54°
31
81°
55°
1
82°
56°
2
83°
55°
3
74°
52°
4
73°
53°
5
80°
55°
6
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cascade Valley
Cascade Valley's May 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 44° and 56°. The average high for May is 78° with an average low of 51°. 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 Valley. See also: June | July | August.
