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
115°
95°
12
113°
90°
13
113°
83°
14
106°
83°
15
108°
83°
16
107°
80°
17
108°
81°
18
112°
80°
19
113°
80°
20
112°
79°
21
111°
79°
22
106°
78°
23
107°
77°
24
107°
78°
25
108°
78°
26
102°
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 National Park
Death Valley National Park's September 2026 forecast shows daily high temperatures ranging from 96° to 113°, with overnight lows between 69° and 83°. 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 National Park. See also: October | November | December.
