S
M
T
W
T
F
S
29
53°
41°
30
60°
34°
31
55°
37°
1
55°
44°
2
57°
37°
3
62°
34°
4
74°
34°
5
78°
42°
6
79°
43°
7
62°
44°
8
68°
36°
9
77°
38°
10
74°
48°
11
65°
49°
12
55°
50°
13
57°
45°
14
53°
44°
15
51°
38°
16
56°
39°
17
57°
41°
18
62°
50°
19
58°
46°
20
63°
47°
21
64°
48°
22
65°
49°
23
67°
48°
24
62°
49°
25
62°
50°
26
63°
46°
27
66°
42°
28
66°
47°
29
67°
50°
30
67°
51°
1
61°
50°
2
60°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Portland
Portland's April 2026 forecast shows daily high temperatures ranging from 51° to 67°, with overnight lows between 38° and 51°. The average high for April is 61° with an average low of 47°. 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 Portland. See also: May | June | July.