S
M
T
W
T
F
S
31
68°
38°
1
66°
42°
2
69°
41°
3
74°
44°
4
78°
47°
5
81°
52°
6
75°
61°
7
72°
55°
8
79°
51°
9
81°
59°
10
80°
67°
11
85°
67°
12
78°
59°
13
78°
56°
14
71°
54°
15
61°
46°
16
72°
54°
17
74°
59°
18
75°
54°
19
71°
53°
20
69°
47°
21
69°
49°
22
73°
52°
23
76°
53°
24
71°
52°
25
72°
52°
26
73°
54°
27
76°
54°
28
75°
53°
29
72°
50°
30
73°
51°
1
73°
49°
2
75°
57°
3
75°
54°
4
76°
53°
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 76°, with overnight lows between 46° and 59°. The average high for June is 73° 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.
