S
M
T
W
T
F
S
26
63°
52°
27
66°
46°
28
73°
55°
29
66°
52°
30
63°
48°
31
64°
48°
1
64°
50°
2
N/A
3
61°
53°
4
61°
54°
5
60°
47°
6
59°
46°
7
62°
48°
8
62°
49°
9
63°
51°
10
65°
53°
11
65°
52°
12
64°
52°
13
63°
51°
14
63°
53°
15
64°
52°
16
62°
54°
17
61°
53°
18
60°
50°
19
58°
49°
20
58°
49°
21
59°
50°
22
58°
49°
23
59°
49°
24
60°
54°
25
63°
53°
26
60°
53°
27
60°
51°
28
63°
54°
29
62°
53°
30
63°
54°
31
59°
53°
1
60°
50°
2
58°
49°
3
58°
51°
4
59°
52°
5
58°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Grantown-on-Spey
Grantown-on-Spey's August 2026 forecast shows daily high temperatures ranging from 58° to 65°, with overnight lows between 46° and 54°. The average high for August is 61° with an average low of 51°. 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 Grantown-on-Spey. See also: September | October | November.