S
M
T
W
T
F
S
26
86°
71°
27
86°
70°
28
89°
71°
29
89°
70°
30
91°
71°
31
91°
71°
1
90°
70°
2
89°
71°
3
90°
65°
4
88°
64°
5
84°
64°
6
85°
63°
7
84°
64°
8
85°
68°
9
88°
69°
10
89°
70°
11
89°
71°
12
91°
70°
13
Hist. Avg.
88°
72°
14
Hist. Avg.
88°
71°
15
Hist. Avg.
88°
71°
16
Hist. Avg.
88°
71°
17
Hist. Avg.
88°
71°
18
Hist. Avg.
88°
71°
19
Hist. Avg.
88°
71°
20
Hist. Avg.
88°
71°
21
Hist. Avg.
87°
71°
22
Hist. Avg.
87°
70°
23
Hist. Avg.
87°
70°
24
Hist. Avg.
87°
70°
25
Hist. Avg.
87°
70°
26
Hist. Avg.
87°
70°
27
Hist. Avg.
86°
70°
28
Hist. Avg.
86°
70°
29
Hist. Avg.
86°
69°
30
Hist. Avg.
86°
69°
31
Hist. Avg.
86°
69°
1
Hist. Avg.
85°
69°
2
Hist. Avg.
85°
68°
3
Hist. Avg.
85°
68°
4
Hist. Avg.
85°
68°
5
Hist. Avg.
84°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in McLean
McLean's August 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 63° and 71°. The average high for August is 88° with an average low of 69°. 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 McLean. See also: September | October | November.
