S
M
T
W
T
F
S
30
85°
56°
31
83°
53°
1
77°
50°
2
74°
45°
3
75°
45°
4
74°
54°
5
78°
47°
6
79°
47°
7
83°
47°
8
91°
48°
9
95°
57°
10
93°
61°
11
89°
56°
12
87°
57°
13
80°
51°
14
85°
52°
15
86°
51°
16
86°
51°
17
87°
54°
18
90°
55°
19
88°
53°
20
85°
52°
21
80°
49°
22
81°
50°
23
82°
51°
24
81°
49°
25
74°
46°
26
77°
52°
27
74°
48°
28
74°
46°
29
77°
49°
30
81°
52°
1
82°
52°
2
82°
51°
3
81°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yosemite National Park
Yosemite National Park's September 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 46° and 57°. The average high for September is 82° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Yosemite National Park. See also: October | November | December.
