S
M
T
W
T
F
S
26
93°
61°
27
93°
58°
28
91°
56°
29
93°
58°
30
95°
60°
31
99°
56°
1
100°
60°
2
98°
60°
3
99°
65°
4
100°
61°
5
99°
61°
6
101°
63°
7
102°
65°
8
100°
66°
9
100°
65°
10
94°
68°
11
93°
63°
12
87°
61°
13
88°
61°
14
88°
61°
15
84°
55°
16
86°
58°
17
88°
56°
18
89°
57°
19
86°
56°
20
88°
56°
21
89°
57°
22
89°
57°
23
90°
56°
24
82°
56°
25
83°
56°
26
87°
59°
27
87°
60°
28
88°
60°
29
83°
53°
30
87°
58°
31
89°
58°
1
90°
59°
2
90°
59°
3
88°
58°
4
88°
57°
5
87°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Yosemite Valley
Yosemite Valley's August 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 53° and 68°. The average high for August is 88° with an average low of 58°. 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 Yosemite Valley. See also: September | October | November.
