S
M
T
W
T
F
S
26
58°
47°
27
63°
42°
28
66°
42°
29
60°
39°
30
60°
43°
1
65°
46°
2
64°
41°
3
63°
43°
4
66°
46°
5
71°
50°
6
72°
52°
7
73°
53°
8
74°
53°
9
74°
52°
10
73°
50°
11
64°
47°
12
67°
51°
13
70°
50°
14
67°
47°
15
67°
47°
16
71°
50°
17
75°
54°
18
69°
47°
19
69°
46°
20
68°
45°
21
69°
47°
22
69°
48°
23
68°
49°
24
67°
57°
25
71°
55°
26
76°
54°
27
80°
51°
28
72°
60°
29
80°
59°
30
81°
50°
31
74°
52°
1
73°
53°
2
75°
53°
3
77°
54°
4
78°
55°
5
82°
52°
6
74°
52°
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 58° to 82°, with overnight lows between 39° and 60°. The average high for May is 70° with an average low of 50°. 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.
