S
M
T
W
T
F
S
30
104°
80°
31
102°
79°
1
99°
80°
2
100°
78°
3
102°
77°
4
102°
78°
5
101°
80°
6
104°
81°
7
104°
79°
8
100°
80°
9
98°
78°
10
97°
77°
11
97°
78°
12
96°
80°
13
97°
78°
14
101°
79°
15
100°
78°
16
96°
77°
17
97°
76°
18
96°
77°
19
100°
71°
20
97°
71°
21
101°
75°
22
100°
75°
23
Hist. Avg.
99°
71°
24
Hist. Avg.
99°
71°
25
Hist. Avg.
99°
70°
26
Hist. Avg.
98°
70°
27
Hist. Avg.
98°
69°
28
Hist. Avg.
97°
69°
29
Hist. Avg.
97°
68°
30
Hist. Avg.
96°
68°
1
Hist. Avg.
96°
67°
2
Hist. Avg.
96°
67°
3
Hist. Avg.
95°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chuckwalla Valley
Chuckwalla Valley's September 2026 forecast shows daily high temperatures ranging from 96° to 104°, with overnight lows between 71° and 81°. The average high for September is 100° 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 Chuckwalla Valley. See also: October | November | December.
