S
M
T
W
T
F
S
26
63°
32°
27
67°
38°
28
64°
44°
29
68°
41°
30
75°
40°
1
80°
44°
2
82°
53°
3
83°
48°
4
84°
52°
5
81°
50°
6
85°
55°
7
80°
49°
8
75°
47°
9
76°
47°
10
81°
48°
11
82°
49°
12
86°
51°
13
85°
50°
14
79°
48°
15
77°
45°
16
72°
45°
17
73°
46°
18
67°
44°
19
67°
41°
20
68°
43°
21
78°
52°
22
79°
53°
23
76°
51°
24
79°
53°
25
80°
53°
26
78°
52°
27
79°
53°
28
79°
54°
29
78°
53°
30
80°
54°
31
81°
54°
1
82°
56°
2
81°
55°
3
82°
55°
4
81°
54°
5
80°
55°
6
81°
54°
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 67° to 86°, with overnight lows between 41° and 56°. The average high for May is 79° with an average low of 51°. 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.
