S
M
T
W
T
F
S
31
62°
36°
1
66°
44°
2
71°
41°
3
78°
48°
4
82°
53°
5
83°
60°
6
76°
54°
7
63°
48°
8
66°
50°
9
71°
52°
10
72°
53°
11
74°
56°
12
71°
55°
13
71°
54°
14
73°
55°
15
72°
52°
16
66°
48°
17
68°
51°
18
69°
53°
19
70°
53°
20
69°
51°
21
69°
51°
22
70°
52°
23
69°
52°
24
69°
58°
25
70°
58°
26
71°
56°
27
71°
58°
28
72°
56°
29
71°
55°
30
70°
54°
1
70°
53°
2
71°
56°
3
73°
60°
4
74°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Casco
Casco's June 2026 forecast shows daily high temperatures ranging from 63° to 83°, with overnight lows between 41° and 60°. The average high for June is 71° with an average low of 54°. 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 Casco. See also: July | August | September.
