S
M
T
W
T
F
S
26
59°
34°
27
59°
46°
28
59°
39°
29
59°
36°
30
N/A
1
67°
49°
2
59°
42°
3
54°
37°
4
51°
36°
5
51°
35°
6
48°
33°
7
52°
37°
8
53°
40°
9
56°
40°
10
59°
41°
11
58°
43°
12
59°
45°
13
52°
42°
14
53°
41°
15
54°
46°
16
58°
46°
17
56°
45°
18
57°
46°
19
55°
46°
20
55°
45°
21
56°
47°
22
55°
45°
23
55°
44°
24
54°
43°
25
54°
42°
26
55°
42°
27
55°
47°
28
57°
48°
29
57°
44°
30
56°
43°
31
55°
43°
1
55°
44°
2
54°
44°
3
55°
45°
4
56°
44°
5
56°
44°
6
57°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fort Augustus
Fort Augustus's May 2026 forecast shows daily high temperatures ranging from 48° to 67°, with overnight lows between 33° and 49°. The average high for May is 55° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Fort Augustus. See also: June | July | August.
