S
M
T
W
T
F
S
26
78°
58°
27
75°
53°
28
75°
58°
29
76°
54°
30
73°
53°
31
74°
57°
1
75°
57°
2
79°
58°
3
78°
59°
4
76°
58°
5
78°
54°
6
74°
51°
7
73°
53°
8
75°
55°
9
73°
54°
10
73°
53°
11
74°
50°
12
73°
53°
13
75°
57°
14
76°
55°
15
73°
51°
16
72°
50°
17
72°
51°
18
73°
56°
19
72°
57°
20
78°
57°
21
76°
56°
22
78°
55°
23
74°
55°
24
81°
54°
25
77°
54°
26
78°
51°
27
79°
47°
28
72°
46°
29
69°
47°
30
68°
45°
31
68°
44°
1
70°
49°
2
70°
53°
3
69°
54°
4
77°
54°
5
78°
52°
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 44° and 59°. The average high for August is 74° 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.
