S
M
T
W
T
F
S
26
66°
58°
27
67°
59°
28
69°
58°
29
70°
59°
30
70°
59°
31
69°
58°
1
69°
58°
2
65°
57°
3
65°
58°
4
66°
58°
5
65°
57°
6
64°
57°
7
66°
56°
8
65°
58°
9
66°
57°
10
66°
54°
11
65°
54°
12
65°
53°
13
66°
53°
14
67°
54°
15
68°
58°
16
68°
57°
17
67°
57°
18
69°
56°
19
69°
56°
20
68°
57°
21
67°
57°
22
69°
55°
23
66°
56°
24
67°
53°
25
66°
54°
26
64°
55°
27
64°
52°
28
67°
57°
29
69°
56°
30
69°
52°
31
67°
53°
1
66°
56°
2
67°
55°
3
64°
55°
4
64°
54°
5
65°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Glenarm
Glenarm's August 2026 forecast shows daily high temperatures ranging from 64° to 70°, with overnight lows between 52° and 59°. The average high for August is 67° with an average low of 56°. 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 Glenarm. See also: September | October | November.