S
M
T
W
T
F
S
26
72°
38°
27
58°
43°
28
61°
46°
29
72°
40°
30
83°
46°
1
76°
49°
2
72°
49°
3
93°
50°
4
75°
54°
5
65°
53°
6
70°
55°
7
72°
53°
8
69°
50°
9
81°
47°
10
71°
52°
11
82°
48°
12
82°
52°
13
64°
52°
14
64°
50°
15
59°
45°
16
57°
45°
17
66°
41°
18
73°
45°
19
68°
48°
20
74°
49°
21
83°
50°
22
82°
51°
23
78°
49°
24
74°
51°
25
63°
46°
26
65°
45°
27
72°
47°
28
69°
45°
29
68°
46°
30
73°
47°
31
77°
51°
1
72°
49°
2
78°
54°
3
76°
53°
4
75°
50°
5
70°
46°
6
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Tualatin
Tualatin's May 2026 forecast shows daily high temperatures ranging from 63° to 83°, with overnight lows between 45° and 54°. The average high for May is 73° with an average low of 49°. 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 Tualatin. See also: June | July | August.
