S
M
T
W
T
F
S
29
54°
41°
30
60°
36°
31
60°
44°
1
54°
42°
2
57°
35°
3
62°
40°
4
71°
46°
5
77°
49°
6
76°
48°
7
66°
43°
8
67°
43°
9
65°
42°
10
64°
43°
11
66°
46°
12
69°
48°
13
68°
48°
14
66°
50°
15
62°
43°
16
64°
46°
17
66°
47°
18
61°
47°
19
58°
42°
20
57°
41°
21
57°
40°
22
58°
40°
23
58°
41°
24
59°
40°
25
60°
45°
26
60°
46°
27
59°
42°
28
64°
43°
29
63°
44°
30
67°
46°
1
67°
46°
2
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Willamette
Willamette's April 2026 forecast shows daily high temperatures ranging from 57° to 77°, with overnight lows between 35° and 50°. The average high for April is 64° with an average low of 44°. 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. See also: May | June | July.
