S
M
T
W
T
F
S
30
78°
57°
31
78°
55°
1
72°
54°
2
70°
54°
3
73°
55°
4
76°
55°
5
77°
54°
6
77°
56°
7
76°
56°
8
77°
54°
9
73°
54°
10
72°
53°
11
76°
54°
12
73°
53°
13
69°
51°
14
64°
42°
15
64°
47°
16
66°
47°
17
68°
48°
18
65°
41°
19
66°
49°
20
72°
50°
21
72°
50°
22
71°
43°
23
68°
41°
24
65°
45°
25
70°
48°
26
70°
46°
27
68°
40°
28
65°
37°
29
59°
42°
30
62°
44°
1
64°
43°
2
62°
47°
3
66°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Westwood
Westwood's September 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 37° and 57°. The average high for September is 70° with an average low of 49°. 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 Westwood. See also: October | November | December.
