S
M
T
W
T
F
S
31
82°
58°
1
82°
64°
2
77°
62°
3
73°
64°
4
77°
63°
5
83°
62°
6
79°
60°
7
82°
59°
8
85°
63°
9
84°
60°
10
86°
61°
11
85°
59°
12
82°
56°
13
84°
59°
14
81°
56°
15
83°
57°
16
74°
52°
17
75°
53°
18
75°
54°
19
76°
57°
20
79°
62°
21
85°
62°
22
78°
61°
23
84°
62°
24
87°
64°
25
88°
64°
26
86°
63°
27
87°
64°
28
89°
66°
29
89°
65°
30
87°
64°
1
86°
65°
2
89°
66°
3
88°
64°
4
82°
61°
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 73° to 89°, with overnight lows between 52° and 66°. The average high for June is 83° with an average low of 61°. 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.
