S
M
T
W
T
F
S
29
74°
45°
30
86°
61°
31
80°
65°
1
64°
53°
2
82°
56°
3
82°
57°
4
66°
43°
5
59°
38°
6
67°
37°
7
64°
43°
8
75°
46°
9
81°
57°
10
71°
53°
11
72°
50°
12
77°
65°
13
82°
64°
14
88°
64°
15
76°
62°
16
80°
61°
17
81°
43°
18
61°
38°
19
69°
45°
20
76°
52°
21
74°
52°
22
76°
55°
23
77°
59°
24
74°
50°
25
65°
45°
26
61°
43°
27
63°
43°
28
63°
47°
29
70°
48°
30
64°
44°
1
66°
41°
2
64°
43°
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 61° to 81°, with overnight lows between 38° and 61°. The average high for April is 70° with an average low of 48°. 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.