S
M
T
W
T
F
S
31
63°
45°
1
62°
48°
2
64°
50°
3
64°
50°
4
63°
49°
5
66°
52°
6
66°
52°
7
68°
51°
8
68°
53°
9
67°
53°
10
69°
51°
11
68°
52°
12
68°
52°
13
67°
50°
14
67°
51°
15
66°
53°
16
68°
52°
17
68°
53°
18
67°
51°
19
67°
50°
20
63°
51°
21
67°
51°
22
67°
50°
23
66°
48°
24
64°
51°
25
66°
52°
26
67°
53°
27
68°
54°
28
69°
53°
29
68°
54°
30
67°
53°
1
67°
52°
2
68°
52°
3
68°
55°
4
67°
55°
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 62° to 69°, with overnight lows between 45° and 55°. The average high for June is 67° 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 Belfast. See also: July | August | September.
