S
M
T
W
T
F
S
31
64°
49°
1
65°
48°
2
71°
52°
3
73°
56°
4
75°
56°
5
76°
55°
6
75°
48°
7
75°
49°
8
68°
51°
9
66°
51°
10
72°
49°
11
71°
54°
12
69°
50°
13
73°
49°
14
70°
51°
15
70°
49°
16
71°
52°
17
72°
57°
18
70°
54°
19
72°
57°
20
74°
57°
21
73°
55°
22
72°
58°
23
73°
61°
24
73°
61°
25
77°
60°
26
80°
56°
27
80°
60°
28
77°
61°
29
76°
61°
30
77°
59°
1
81°
62°
2
81°
54°
3
76°
55°
4
74°
61°
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 64° to 81°, with overnight lows between 48° and 62°. The average high for June is 73° with an average low of 55°. 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.
