S
M
T
W
T
F
S
26
85°
67°
27
85°
67°
28
85°
68°
29
82°
66°
30
84°
63°
31
87°
60°
1
84°
64°
2
81°
71°
3
88°
71°
4
85°
73°
5
85°
70°
6
90°
69°
7
88°
71°
8
90°
69°
9
90°
70°
10
91°
67°
11
80°
68°
12
87°
67°
13
91°
67°
14
92°
74°
15
88°
70°
16
92°
73°
17
92°
73°
18
91°
71°
19
91°
66°
20
90°
68°
21
75°
67°
22
85°
67°
23
83°
61°
24
83°
58°
25
83°
54°
26
87°
57°
27
84°
68°
28
87°
64°
29
85°
67°
30
88°
66°
31
94°
69°
1
94°
68°
2
97°
70°
3
97°
71°
4
98°
73°
5
92°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fincastle
Fincastle's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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 Fincastle. See also: September | October | November.