S
M
T
W
T
F
S
30
106°
86°
31
106°
85°
1
107°
82°
2
106°
81°
3
106°
83°
4
107°
79°
5
108°
83°
6
110°
79°
7
110°
82°
8
112°
84°
9
111°
82°
10
112°
83°
11
111°
81°
12
110°
80°
13
110°
81°
14
109°
81°
15
109°
82°
16
110°
82°
17
109°
81°
18
107°
80°
19
108°
80°
20
108°
80°
21
105°
79°
22
102°
78°
23
99°
75°
24
98°
75°
25
101°
77°
26
102°
71°
27
96°
65°
28
95°
69°
29
97°
68°
30
101°
69°
1
101°
68°
2
100°
67°
3
98°
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 112°, with overnight lows between 65° and 86°. The average high for September is 105° 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.
