S
M
T
W
T
F
S
30
89°
62°
31
89°
62°
1
88°
61°
2
90°
62°
3
89°
63°
4
87°
62°
5
89°
58°
6
88°
53°
7
82°
54°
8
81°
55°
9
82°
57°
10
86°
60°
11
87°
57°
12
88°
58°
13
86°
61°
14
87°
61°
15
87°
57°
16
84°
58°
17
85°
59°
18
86°
60°
19
86°
58°
20
85°
54°
21
83°
58°
22
80°
59°
23
78°
55°
24
80°
59°
25
80°
56°
26
83°
53°
27
79°
54°
28
79°
55°
29
80°
53°
30
77°
56°
1
78°
62°
2
84°
59°
3
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newbury Park
Newbury Park's September 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 53° and 63°. The average high for September is 84° with an average low of 58°. 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 Newbury Park. See also: October | November | December.
