S
M
T
W
T
F
S
30
105°
77°
31
106°
75°
1
106°
73°
2
104°
73°
3
104°
72°
4
103°
72°
5
102°
73°
6
103°
73°
7
103°
74°
8
102°
71°
9
100°
72°
10
100°
72°
11
101°
74°
12
105°
73°
13
106°
76°
14
107°
70°
15
99°
69°
16
99°
69°
17
100°
70°
18
104°
70°
19
105°
73°
20
105°
74°
21
104°
74°
22
106°
73°
23
106°
75°
24
104°
74°
25
96°
69°
26
95°
68°
27
94°
70°
28
95°
71°
29
98°
69°
30
96°
68°
1
92°
66°
2
91°
66°
3
91°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mohave Valley
Mohave Valley's September 2026 forecast shows daily high temperatures ranging from 91° to 107°, with overnight lows between 66° and 77°. The average high for September is 101° with an average low of 72°. 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 Mohave Valley. See also: October | November | December.