S
M
T
W
T
F
S
30
110°
89°
31
110°
91°
1
105°
85°
2
105°
81°
3
103°
82°
4
104°
84°
5
105°
84°
6
95°
84°
7
98°
78°
8
108°
79°
9
116°
86°
10
117°
90°
11
114°
95°
12
115°
86°
13
112°
83°
14
106°
82°
15
105°
80°
16
109°
80°
17
112°
81°
18
112°
80°
19
113°
80°
20
114°
82°
21
107°
81°
22
109°
81°
23
107°
79°
24
108°
80°
25
102°
70°
26
97°
73°
27
102°
72°
28
98°
69°
29
99°
72°
30
99°
73°
1
100°
73°
2
96°
71°
3
98°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Death Valley
Death Valley's September 2026 forecast shows daily high temperatures ranging from 96° to 115°, with overnight lows between 69° and 86°. The average high for September is 105° with an average low of 77°. 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 Death Valley. See also: October | November | December.
