S
M
T
W
T
F
S
30
95°
65°
31
94°
64°
1
94°
64°
2
93°
62°
3
92°
62°
4
92°
63°
5
93°
64°
6
94°
65°
7
94°
63°
8
89°
61°
9
87°
60°
10
89°
62°
11
91°
63°
12
89°
64°
13
90°
61°
14
87°
64°
15
88°
58°
16
88°
59°
17
89°
59°
18
87°
58°
19
87°
60°
20
89°
62°
21
87°
57°
22
87°
56°
23
88°
56°
24
87°
57°
25
84°
57°
26
86°
56°
27
88°
54°
28
84°
53°
29
83°
55°
30
83°
58°
1
86°
58°
2
87°
60°
3
89°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chino Hills
Chino Hills's September 2026 forecast shows daily high temperatures ranging from 83° to 95°, with overnight lows between 53° and 65°. The average high for September is 89° with an average low of 60°. 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 Chino Hills. See also: October | November | December.
