S
M
T
W
T
F
S
31
71°
49°
1
74°
50°
2
75°
56°
3
76°
57°
4
77°
48°
5
75°
56°
6
77°
49°
7
76°
54°
8
76°
56°
9
75°
50°
10
69°
49°
11
75°
48°
12
76°
60°
13
77°
57°
14
77°
59°
15
79°
56°
16
76°
52°
17
68°
49°
18
67°
51°
19
71°
57°
20
68°
53°
21
69°
48°
22
72°
50°
23
75°
54°
24
70°
48°
25
71°
51°
26
72°
51°
27
77°
50°
28
76°
57°
29
79°
55°
30
82°
59°
1
82°
51°
2
78°
55°
3
78°
55°
4
79°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Portland
Portland's June 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 48° and 60°. The average high for June is 75° with an average low of 53°. 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.