S
M
T
W
T
F
S
31
59°
48°
1
63°
49°
2
65°
50°
3
64°
49°
4
64°
50°
5
63°
50°
6
64°
49°
7
63°
50°
8
62°
49°
9
63°
49°
10
61°
50°
11
62°
47°
12
64°
51°
13
66°
50°
14
65°
51°
15
62°
51°
16
63°
50°
17
64°
52°
18
65°
52°
19
66°
51°
20
65°
52°
21
66°
51°
22
66°
53°
23
65°
53°
24
66°
52°
25
66°
54°
26
67°
54°
27
68°
53°
28
67°
53°
29
68°
54°
30
68°
54°
1
67°
53°
2
68°
53°
3
67°
52°
4
67°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Castlewellan
Castlewellan's June 2026 forecast shows daily high temperatures ranging from 59° to 68°, with overnight lows between 47° and 54°. The average high for June is 65° with an average low of 51°. 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 Castlewellan. See also: July | August | September.
