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
96°
69°
11
94°
64°
12
88°
62°
13
82°
61°
14
84°
56°
15
87°
52°
16
90°
53°
17
90°
57°
18
91°
63°
19
93°
68°
20
93°
67°
21
96°
64°
22
92°
63°
23
92°
59°
24
91°
57°
25
90°
56°
26
89°
57°
27
90°
55°
28
90°
54°
29
88°
56°
30
89°
56°
31
87°
55°
1
82°
56°
2
82°
55°
3
85°
58°
4
89°
59°
5
88°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Yosemite National Park
Yosemite National Park's August 2026 forecast shows daily high temperatures ranging from 82° to 96°, with overnight lows between 54° and 68°. The average high for August is 89° with an average low of 59°. 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 National Park. See also: September | October | November.