S
M
T
W
T
F
S
30
92°
73°
31
92°
74°
1
90°
74°
2
91°
74°
3
87°
76°
4
91°
76°
5
90°
75°
6
93°
74°
7
89°
73°
8
87°
73°
9
90°
73°
10
91°
73°
11
91°
73°
12
90°
71°
13
91°
72°
14
92°
71°
15
90°
72°
16
89°
70°
17
89°
69°
18
88°
69°
19
89°
71°
20
87°
67°
21
86°
70°
22
90°
69°
23
90°
70°
24
89°
70°
25
86°
69°
26
89°
70°
27
88°
70°
28
88°
69°
29
87°
69°
30
88°
68°
1
88°
69°
2
87°
68°
3
88°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hawthorne
Hawthorne's September 2026 forecast shows daily high temperatures ranging from 86° to 92°, with overnight lows between 67° and 73°. The average high for September is 89° with an average low of 70°. 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 Hawthorne. See also: October | November | December.
