S
M
T
W
T
F
S
31
66°
41°
1
70°
43°
2
81°
48°
3
68°
55°
4
63°
54°
5
63°
50°
6
57°
48°
7
63°
48°
8
61°
52°
9
63°
52°
10
64°
46°
11
70°
45°
12
70°
46°
13
75°
50°
14
82°
54°
15
82°
55°
16
70°
50°
17
70°
50°
18
72°
53°
19
74°
54°
20
74°
51°
21
73°
52°
22
72°
51°
23
71°
53°
24
71°
51°
25
68°
52°
26
69°
51°
27
70°
52°
28
80°
59°
29
77°
56°
30
68°
53°
1
66°
51°
2
70°
55°
3
73°
55°
4
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Belfast
Belfast's June 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 50° and 59°. The average high for June is 72° with an average low of 53°. 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 Belfast. See also: July | August | September.
