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
115°
92°
10
118°
93°
11
116°
88°
12
112°
86°
13
104°
80°
14
109°
79°
15
108°
80°
16
109°
76°
17
108°
81°
18
113°
79°
19
113°
82°
20
110°
80°
21
113°
81°
22
104°
73°
23
99°
75°
24
100°
77°
25
96°
70°
26
97°
73°
27
102°
72°
28
99°
70°
29
101°
72°
30
104°
75°
1
104°
75°
2
103°
74°
3
104°
74°
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 118°, with overnight lows between 70° and 93°. The average high for September is 106° with an average low of 78°. 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.
