S
M
T
W
T
F
S
30
91°
70°
31
86°
66°
1
84°
62°
2
83°
61°
3
83°
65°
4
84°
64°
5
91°
62°
6
76°
66°
7
93°
71°
8
92°
74°
9
105°
77°
10
98°
76°
11
92°
73°
12
88°
70°
13
85°
67°
14
85°
67°
15
83°
67°
16
81°
66°
17
81°
67°
18
83°
68°
19
84°
70°
20
85°
69°
21
83°
68°
22
82°
67°
23
83°
67°
24
83°
68°
25
82°
66°
26
81°
64°
27
84°
65°
28
79°
61°
29
81°
64°
30
78°
64°
1
77°
63°
2
76°
63°
3
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Los Angeles
Los Angeles's September 2026 forecast shows daily high temperatures ranging from 76° to 85°, with overnight lows between 61° and 70°. The average high for September is 82° with an average low of 66°. 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 Los Angeles. See also: October | November | December.