S
M
T
W
T
F
S
26
65°
55°
27
67°
54°
28
68°
55°
29
67°
55°
30
66°
54°
31
66°
54°
1
63°
53°
2
65°
54°
3
66°
55°
4
66°
55°
5
64°
54°
6
64°
54°
7
63°
52°
8
63°
51°
9
64°
53°
10
65°
53°
11
65°
54°
12
63°
50°
13
63°
51°
14
62°
53°
15
62°
52°
16
63°
52°
17
63°
47°
18
64°
50°
19
62°
51°
20
61°
49°
21
64°
51°
22
61°
52°
23
61°
48°
24
62°
48°
25
62°
47°
26
64°
49°
27
64°
52°
28
63°
52°
29
65°
53°
30
65°
52°
31
64°
52°
1
64°
51°
2
63°
52°
3
62°
52°
4
63°
51°
5
63°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Augustus
Fort Augustus's August 2026 forecast shows daily high temperatures ranging from 61° to 68°, 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 Fort Augustus. See also: September | October | November.
