S
M
T
W
T
F
S
31
70°
51°
1
67°
46°
2
64°
43°
3
67°
46°
4
69°
51°
5
66°
52°
6
69°
48°
7
65°
46°
8
65°
44°
9
66°
46°
10
66°
47°
11
71°
53°
12
72°
51°
13
69°
53°
14
73°
55°
15
76°
55°
16
76°
54°
17
77°
55°
18
71°
54°
19
75°
55°
20
77°
55°
21
76°
51°
22
78°
55°
23
79°
55°
24
78°
54°
25
80°
47°
26
74°
47°
27
75°
51°
28
79°
53°
29
80°
50°
30
73°
50°
1
73°
49°
2
72°
48°
3
71°
49°
4
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Castlebar
Castlebar's June 2026 forecast shows daily high temperatures ranging from 64° to 80°, with overnight lows between 43° and 55°. The average high for June is 72° with an average low of 50°. 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 Castlebar. See also: July | August | September.
