S
M
T
W
T
F
S
26
62°
40°
27
73°
39°
28
60°
42°
29
59°
49°
30
56°
43°
1
60°
38°
2
53°
41°
3
59°
37°
4
72°
41°
5
81°
58°
6
68°
46°
7
60°
41°
8
53°
36°
9
58°
46°
10
65°
46°
11
61°
39°
12
64°
32°
13
67°
50°
14
53°
46°
15
63°
45°
16
80°
42°
17
85°
57°
18
91°
61°
19
91°
66°
20
79°
48°
21
64°
44°
22
67°
47°
23
53°
49°
24
62°
52°
25
72°
56°
26
76°
55°
27
75°
54°
28
77°
54°
29
78°
56°
30
75°
55°
31
78°
58°
1
77°
56°
2
78°
54°
3
79°
58°
4
80°
59°
5
80°
60°
6
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Happy Valley
Happy Valley's May 2026 forecast shows daily high temperatures ranging from 53° to 80°, with overnight lows between 44° and 60°. The average high for May is 74° with an average low of 54°. 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 Happy Valley. See also: June | July | August.
