S
M
T
W
T
F
S
31
60°
44°
1
60°
39°
2
59°
40°
3
59°
47°
4
61°
46°
5
55°
46°
6
60°
37°
7
63°
32°
8
65°
34°
9
66°
49°
10
65°
47°
11
65°
54°
12
65°
52°
13
65°
47°
14
65°
51°
15
62°
52°
16
65°
46°
17
67°
45°
18
67°
44°
19
64°
51°
20
59°
49°
21
59°
39°
22
N/A
23
54°
28°
24
57°
37°
25
53°
42°
26
54°
37°
27
50°
43°
28
51°
42°
29
54°
40°
30
57°
35°
1
58°
36°
2
57°
33°
3
55°
32°
4
56°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Portland
Portland's June 2026 forecast shows daily high temperatures ranging from 50° to 58°, with overnight lows between 28° and 43°. The average high for June is 55° with an average low of 36°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Portland. See also: July | August | September.