S
M
T
W
T
F
S
30
92°
76°
31
89°
70°
1
85°
71°
2
85°
65°
3
83°
64°
4
84°
60°
5
88°
64°
6
79°
67°
7
83°
68°
8
91°
72°
9
95°
77°
10
99°
80°
11
94°
77°
12
92°
72°
13
91°
74°
14
92°
67°
15
84°
67°
16
84°
64°
17
82°
67°
18
87°
64°
19
89°
67°
20
87°
66°
21
84°
67°
22
88°
66°
23
88°
60°
24
93°
63°
25
91°
61°
26
95°
60°
27
91°
58°
28
90°
57°
29
86°
57°
30
86°
56°
1
85°
55°
2
84°
55°
3
82°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yucca Valley
Yucca Valley's September 2026 forecast shows daily high temperatures ranging from 82° to 95°, with overnight lows between 55° and 67°. The average high for September is 88° 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 September weather will actually feel in Yucca Valley. See also: October | November | December.
