S
M
T
W
T
F
S
26
97°
61°
27
96°
67°
28
96°
63°
29
92°
68°
30
97°
64°
31
100°
57°
1
102°
56°
2
100°
61°
3
100°
59°
4
99°
58°
5
100°
55°
6
100°
63°
7
100°
71°
8
100°
64°
9
98°
59°
10
96°
71°
11
90°
65°
12
87°
62°
13
79°
58°
14
74°
57°
15
85°
52°
16
86°
60°
17
89°
63°
18
88°
62°
19
91°
65°
20
91°
66°
21
87°
65°
22
82°
65°
23
86°
61°
24
89°
62°
25
88°
63°
26
89°
59°
27
91°
57°
28
91°
59°
29
86°
60°
30
75°
62°
31
75°
58°
1
76°
61°
2
75°
60°
3
75°
61°
4
78°
61°
5
81°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mount Wilson
Mount Wilson's August 2026 forecast shows daily high temperatures ranging from 75° to 91°, with overnight lows between 57° and 66°. The average high for August is 84° with an average low of 61°. 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 Mount Wilson. See also: September | October | November.