S
M
T
W
T
F
S
26
63°
40°
27
72°
41°
28
64°
48°
29
52°
43°
30
53°
32°
1
49°
28°
2
54°
29°
3
65°
30°
4
77°
43°
5
61°
42°
6
54°
37°
7
55°
36°
8
66°
30°
9
66°
37°
10
59°
31°
11
59°
39°
12
63°
32°
13
57°
44°
14
67°
41°
15
73°
36°
16
85°
54°
17
74°
53°
18
88°
50°
19
83°
61°
20
65°
45°
21
57°
37°
22
63°
50°
23
59°
48°
24
72°
47°
25
79°
51°
26
84°
52°
27
80°
50°
28
78°
49°
29
79°
53°
30
77°
54°
31
76°
52°
1
77°
52°
2
74°
51°
3
75°
49°
4
78°
56°
5
78°
53°
6
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Beaverton
Beaverton's May 2026 forecast shows daily high temperatures ranging from 59° to 84°, with overnight lows between 47° and 56°. The average high for May is 75° 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 Beaverton. See also: June | July | August.
