S
M
T
W
T
F
S
30
85°
72°
31
80°
68°
1
78°
66°
2
79°
66°
3
79°
68°
4
80°
67°
5
85°
66°
6
77°
66°
7
90°
73°
8
93°
74°
9
102°
78°
10
95°
76°
11
88°
74°
12
84°
71°
13
80°
71°
14
82°
70°
15
80°
70°
16
81°
70°
17
78°
69°
18
78°
66°
19
78°
67°
20
79°
68°
21
78°
69°
22
77°
65°
23
80°
69°
24
81°
70°
25
82°
69°
26
81°
68°
27
82°
68°
28
81°
68°
29
86°
67°
30
84°
66°
1
85°
68°
2
80°
64°
3
76°
66°
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 76° to 86°, with overnight lows between 64° and 70°. The average high for September is 81° with an average low of 67°. 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.
