S
M
T
W
T
F
S
31
63°
37°
1
62°
44°
2
73°
41°
3
79°
49°
4
82°
52°
5
82°
55°
6
62°
55°
7
75°
54°
8
76°
49°
9
85°
52°
10
86°
58°
11
83°
63°
12
76°
57°
13
86°
58°
14
79°
62°
15
78°
57°
16
72°
57°
17
71°
61°
18
68°
62°
19
77°
58°
20
75°
57°
21
73°
56°
22
68°
55°
23
71°
56°
24
73°
57°
25
72°
58°
26
69°
59°
27
72°
58°
28
73°
56°
29
72°
55°
30
72°
56°
1
73°
56°
2
73°
57°
3
74°
62°
4
73°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in South Portland
South Portland's June 2026 forecast shows daily high temperatures ranging from 68° to 79°, with overnight lows between 55° and 62°. The average high for June is 73° with an average low of 58°. 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 South Portland. See also: July | August | September.
