S
M
T
W
T
F
S
28
89°
70°
29
93°
68°
30
90°
65°
1
85°
68°
2
89°
68°
3
88°
65°
4
87°
63°
5
90°
58°
6
90°
66°
7
91°
63°
8
90°
67°
9
90°
68°
10
83°
64°
11
87°
63°
12
90°
65°
13
92°
63°
14
93°
61°
15
94°
66°
16
98°
67°
17
98°
65°
18
96°
63°
19
99°
64°
20
97°
63°
21
96°
64°
22
87°
62°
23
90°
66°
24
92°
69°
25
92°
68°
26
91°
68°
27
92°
67°
28
92°
67°
29
90°
66°
30
89°
66°
31
83°
64°
1
87°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Belfast
Belfast's July 2026 forecast shows daily high temperatures ranging from 83° to 99°, with overnight lows between 61° and 69°. The average high for July is 92° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Belfast. See also: August | September | October.