S
M
T
W
T
F
S
30
93°
61°
31
90°
66°
1
90°
66°
2
93°
61°
3
91°
72°
4
97°
66°
5
95°
63°
6
97°
72°
7
97°
68°
8
91°
68°
9
75°
63°
10
77°
63°
11
81°
61°
12
86°
64°
13
88°
54°
14
91°
70°
15
90°
61°
16
84°
61°
17
79°
63°
18
82°
61°
19
88°
59°
20
90°
52°
21
82°
70°
22
84°
63°
23
86°
54°
24
N/A
25
88°
59°
26
84°
60°
27
84°
58°
28
84°
55°
29
85°
58°
30
83°
59°
1
80°
60°
2
79°
57°
3
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Orange
Orange's September 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 55° and 60°. The average high for September is 83° 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 Orange. See also: October | November | December.