S
M
T
W
T
F
S
26
73°
57°
27
72°
56°
28
73°
58°
29
70°
57°
30
68°
57°
31
69°
55°
1
68°
53°
2
69°
52°
3
70°
55°
4
72°
58°
5
72°
58°
6
71°
57°
7
68°
57°
8
68°
55°
9
70°
57°
10
71°
55°
11
73°
58°
12
73°
58°
13
72°
57°
14
73°
58°
15
73°
57°
16
72°
58°
17
72°
56°
18
72°
54°
19
69°
51°
20
68°
51°
21
67°
50°
22
67°
51°
23
68°
55°
24
67°
51°
25
67°
52°
26
68°
55°
27
66°
55°
28
66°
51°
29
66°
51°
30
67°
49°
31
66°
50°
1
68°
51°
2
69°
54°
3
70°
55°
4
69°
50°
5
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Welsh St Donats
Welsh St Donats's August 2026 forecast shows daily high temperatures ranging from 66° to 73°, with overnight lows between 49° and 58°. The average high for August is 70° 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 Welsh St Donats. See also: September | October | November.