S
M
T
W
T
F
S
26
81°
58°
27
81°
58°
28
80°
57°
29
81°
59°
30
81°
58°
31
80°
57°
1
79°
58°
2
80°
59°
3
80°
58°
4
79°
57°
5
76°
53°
6
77°
54°
7
80°
58°
8
80°
51°
9
73°
50°
10
73°
50°
11
74°
55°
12
73°
53°
13
74°
57°
14
74°
58°
15
77°
57°
16
78°
55°
17
73°
49°
18
73°
47°
19
74°
52°
20
76°
53°
21
73°
54°
22
75°
50°
23
78°
51°
24
76°
47°
25
71°
46°
26
73°
48°
27
71°
47°
28
70°
46°
29
75°
50°
30
76°
53°
31
77°
53°
1
78°
54°
2
78°
53°
3
77°
45°
4
74°
43°
5
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Londonderry
South Londonderry's August 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 43° and 59°. The average high for August is 76° 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 South Londonderry. See also: September | October | November.
