S
M
T
W
T
F
S
26
70°
63°
27
68°
59°
28
70°
64°
29
70°
63°
30
72°
52°
31
70°
43°
1
70°
45°
2
77°
54°
3
77°
55°
4
72°
66°
5
68°
59°
6
70°
50°
7
68°
45°
8
70°
45°
9
73°
46°
10
75°
52°
11
82°
46°
12
91°
55°
13
79°
57°
14
73°
63°
15
73°
57°
16
70°
55°
17
72°
64°
18
72°
64°
19
70°
57°
20
68°
59°
21
68°
54°
22
68°
46°
23
70°
46°
24
N/A
25
76°
58°
26
75°
57°
27
70°
55°
28
68°
55°
29
67°
56°
30
65°
51°
31
64°
54°
1
64°
54°
2
66°
56°
3
65°
56°
4
65°
54°
5
64°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Newcastle Emlyn
Newcastle Emlyn's August 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 51° and 58°. The average high for August is 67° with an average low of 55°. 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 Newcastle Emlyn. See also: September | October | November.