S
M
T
W
T
F
S
26
53°
39°
27
54°
38°
28
56°
42°
29
55°
39°
30
55°
41°
1
56°
41°
2
56°
38°
3
57°
42°
4
64°
48°
5
67°
46°
6
59°
43°
7
64°
49°
8
71°
51°
9
71°
49°
10
70°
45°
11
60°
45°
12
61°
46°
13
62°
48°
14
62°
49°
15
64°
51°
16
69°
52°
17
65°
51°
18
69°
44°
19
72°
43°
20
65°
43°
21
66°
44°
22
65°
43°
23
64°
44°
24
66°
47°
25
68°
49°
26
68°
53°
27
73°
44°
28
68°
49°
29
68°
55°
30
74°
47°
31
70°
49°
1
68°
54°
2
71°
49°
3
70°
58°
4
74°
56°
5
79°
51°
6
72°
51°
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 53° to 79°, with overnight lows between 38° and 58°. The average high for May is 65° with an average low of 47°. 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.
