S
M
T
W
T
F
S
26
66°
56°
27
68°
52°
28
67°
52°
29
68°
56°
30
69°
55°
31
68°
56°
1
67°
56°
2
69°
55°
3
69°
54°
4
70°
55°
5
70°
56°
6
69°
57°
7
70°
54°
8
68°
53°
9
69°
52°
10
68°
53°
11
65°
54°
12
66°
55°
13
68°
55°
14
67°
54°
15
68°
56°
16
69°
56°
17
69°
55°
18
68°
56°
19
69°
56°
20
68°
55°
21
68°
56°
22
69°
53°
23
68°
52°
24
66°
54°
25
66°
54°
26
65°
53°
27
66°
51°
28
65°
54°
29
65°
54°
30
67°
55°
31
66°
54°
1
66°
54°
2
65°
53°
3
66°
55°
4
67°
55°
5
67°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dundrum
Dundrum's August 2026 forecast shows daily high temperatures ranging from 65° to 70°, with overnight lows between 51° and 57°. The average high for August is 67° with an average low of 54°. 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 Dundrum. See also: September | October | November.