S
M
T
W
T
F
S
26
64°
53°
27
63°
52°
28
65°
55°
29
65°
54°
30
63°
52°
31
63°
51°
1
64°
51°
2
63°
50°
3
63°
54°
4
66°
55°
5
63°
54°
6
64°
52°
7
63°
52°
8
63°
54°
9
64°
54°
10
64°
53°
11
66°
55°
12
67°
54°
13
67°
53°
14
64°
54°
15
63°
54°
16
66°
53°
17
64°
50°
18
63°
49°
19
63°
49°
20
64°
50°
21
63°
48°
22
63°
50°
23
64°
50°
24
63°
49°
25
64°
49°
26
64°
53°
27
62°
53°
28
65°
50°
29
62°
52°
30
63°
50°
31
62°
52°
1
65°
53°
2
65°
52°
3
64°
48°
4
65°
47°
5
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rosyth
Rosyth's August 2026 forecast shows daily high temperatures ranging from 62° to 67°, with overnight lows between 47° and 55°. The average high for August is 64° with an average low of 52°. 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 Rosyth. See also: September | October | November.