S
M
T
W
T
F
S
30
78°
46°
31
80°
49°
1
82°
51°
2
86°
52°
3
84°
50°
4
78°
43°
5
76°
43°
6
78°
45°
7
77°
42°
8
77°
42°
9
76°
48°
10
75°
49°
11
74°
42°
12
75°
43°
13
75°
49°
14
77°
50°
15
83°
50°
16
84°
48°
17
83°
50°
18
82°
43°
19
82°
46°
20
81°
47°
21
81°
49°
22
80°
44°
23
80°
47°
24
75°
48°
25
71°
45°
26
71°
47°
27
69°
46°
28
70°
47°
29
68°
45°
30
68°
48°
1
72°
47°
2
72°
47°
3
75°
47°
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 68° to 86°, with overnight lows between 42° and 52°. The average high for September is 77° with an average low of 47°. 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.
