S
M
T
W
T
F
S
31
66°
41°
1
71°
47°
2
78°
53°
3
70°
51°
4
66°
50°
5
62°
48°
6
62°
46°
7
61°
47°
8
66°
51°
9
67°
49°
10
68°
52°
11
66°
51°
12
66°
49°
13
69°
50°
14
79°
58°
15
63°
53°
16
66°
51°
17
74°
55°
18
73°
55°
19
66°
49°
20
72°
52°
21
73°
55°
22
75°
56°
23
73°
53°
24
68°
50°
25
71°
50°
26
73°
51°
27
66°
49°
28
65°
52°
29
66°
50°
30
71°
54°
1
68°
51°
2
72°
55°
3
76°
57°
4
77°
57°
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 61° to 79°, with overnight lows between 46° and 58°. The average high for June is 69° with an average low of 52°. 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.
