S
M
T
W
T
F
S
30
114°
86°
31
115°
85°
1
114°
84°
2
114°
85°
3
113°
86°
4
110°
83°
5
112°
79°
6
113°
72°
7
105°
72°
8
104°
74°
9
106°
77°
10
109°
80°
11
113°
77°
12
113°
76°
13
110°
80°
14
111°
78°
15
110°
74°
16
107°
73°
17
108°
76°
18
110°
78°
19
110°
76°
20
109°
72°
21
107°
75°
22
100°
73°
23
97°
72°
24
99°
75°
25
99°
73°
26
103°
70°
27
99°
69°
28
98°
72°
29
97°
66°
30
96°
69°
1
95°
74°
2
100°
71°
3
95°
70°
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 95° to 115°, with overnight lows between 66° and 86°. The average high for September is 106° with an average low of 76°. 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.
