S
M
T
W
T
F
S
26
85°
71°
27
83°
70°
28
85°
71°
29
84°
70°
30
85°
70°
31
87°
70°
1
88°
69°
2
88°
69°
3
87°
69°
4
86°
69°
5
86°
67°
6
89°
66°
7
86°
64°
8
86°
65°
9
86°
64°
10
87°
65°
11
91°
67°
12
91°
69°
13
90°
69°
14
91°
68°
15
89°
69°
16
87°
69°
17
87°
66°
18
86°
69°
19
86°
66°
20
87°
67°
21
89°
66°
22
86°
66°
23
89°
67°
24
90°
64°
25
90°
66°
26
89°
68°
27
90°
69°
28
88°
68°
29
89°
69°
30
89°
68°
31
88°
62°
1
84°
61°
2
84°
61°
3
86°
62°
4
89°
66°
5
88°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Loudon
Loudon's August 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 61° and 71°. The average high for August is 87° with an average low of 67°. 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 Loudon. See also: September | October | November.