S
M
T
W
T
F
S
26
68°
27°
27
71°
33°
28
67°
48°
29
72°
43°
30
78°
36°
1
83°
37°
2
85°
47°
3
87°
46°
4
88°
45°
5
85°
57°
6
84°
55°
7
79°
55°
8
77°
54°
9
78°
41°
10
80°
41°
11
79°
40°
12
85°
40°
13
68°
52°
14
69°
46°
15
65°
45°
16
64°
45°
17
70°
42°
18
74°
46°
19
78°
50°
20
79°
49°
21
82°
52°
22
81°
51°
23
82°
51°
24
84°
53°
25
79°
50°
26
73°
48°
27
76°
49°
28
78°
51°
29
82°
53°
30
77°
50°
31
76°
55°
1
82°
57°
2
83°
58°
3
84°
58°
4
83°
57°
5
82°
57°
6
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Irrigon
Irrigon's May 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 42° and 58°. The average high for May is 79° with an average low of 52°. 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 Irrigon. See also: June | July | August.
