S
M
T
W
T
F
S
29
66°
41°
30
43°
34°
31
57°
34°
1
55°
43°
2
50°
30°
3
55°
30°
4
63°
36°
5
68°
35°
6
63°
35°
7
52°
35°
8
49°
27°
9
48°
27°
10
46°
29°
11
42°
31°
12
42°
31°
13
49°
34°
14
49°
33°
15
51°
35°
16
46°
27°
17
51°
32°
18
48°
31°
19
42°
28°
20
40°
25°
21
40°
24°
22
41°
25°
23
41°
25°
24
42°
24°
25
43°
32°
26
44°
31°
27
43°
25°
28
49°
29°
29
50°
33°
30
53°
34°
1
54°
33°
2
55°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Willamette Pass
Willamette Pass's April 2026 forecast shows daily high temperatures ranging from 40° to 68°, with overnight lows between 24° and 36°. The average high for April is 49° with an average low of 30°. 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 Willamette Pass. See also: May | June | July.
