S
M
T
W
T
F
S
26
61°
40°
27
74°
41°
28
64°
53°
29
53°
43°
30
49°
38°
1
46°
35°
2
45°
32°
3
53°
32°
4
70°
45°
5
66°
48°
6
52°
43°
7
55°
39°
8
55°
40°
9
64°
43°
10
54°
42°
11
54°
39°
12
59°
34°
13
62°
45°
14
47°
43°
15
60°
46°
16
77°
46°
17
77°
60°
18
86°
63°
19
85°
65°
20
68°
48°
21
60°
45°
22
66°
44°
23
54°
48°
24
71°
57°
25
74°
57°
26
80°
61°
27
79°
54°
28
72°
52°
29
68°
53°
30
69°
51°
31
70°
55°
1
70°
55°
2
71°
54°
3
69°
56°
4
72°
57°
5
73°
54°
6
71°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pendleton
Pendleton's May 2026 forecast shows daily high temperatures ranging from 54° to 80°, with overnight lows between 48° and 61°. The average high for May is 71° with an average low of 55°. 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 Pendleton. See also: June | July | August.
