S
M
T
W
T
F
S
29
54°
39°
30
50°
43°
31
57°
46°
1
54°
41°
2
52°
39°
3
57°
39°
4
55°
39°
5
47°
34°
6
56°
37°
7
63°
44°
8
63°
46°
9
48°
39°
10
58°
40°
11
55°
39°
12
54°
39°
13
52°
39°
14
54°
42°
15
55°
42°
16
55°
41°
17
56°
42°
18
51°
42°
19
50°
40°
20
52°
44°
21
56°
46°
22
57°
45°
23
58°
45°
24
58°
46°
25
55°
45°
26
54°
43°
27
51°
40°
28
51°
40°
29
52°
41°
30
53°
46°
1
57°
47°
2
56°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Pendleton
Pendleton's April 2026 forecast shows daily high temperatures ranging from 47° to 63°, with overnight lows between 34° and 47°. The average high for April is 55° with an average low of 42°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Pendleton. See also: May | June | July.