S
M
T
W
T
F
S
26
73°
58°
27
70°
58°
28
68°
57°
29
69°
57°
30
71°
56°
31
74°
57°
1
73°
58°
2
75°
58°
3
74°
57°
4
76°
56°
5
68°
54°
6
73°
56°
7
72°
56°
8
73°
55°
9
73°
57°
10
76°
57°
11
75°
56°
12
71°
55°
13
72°
56°
14
73°
52°
15
66°
49°
16
68°
47°
17
67°
44°
18
70°
52°
19
71°
55°
20
74°
51°
21
75°
51°
22
73°
54°
23
76°
54°
24
69°
48°
25
69°
49°
26
71°
52°
27
65°
53°
28
64°
52°
29
67°
48°
30
62°
47°
31
61°
41°
1
62°
50°
2
70°
51°
3
73°
53°
4
71°
45°
5
68°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lisburn
Lisburn's August 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 41° and 58°. The average high for August is 71° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Lisburn. See also: September | October | November.
