S
M
T
W
T
F
S
30
73°
59°
31
72°
55°
1
70°
54°
2
68°
59°
3
77°
64°
4
68°
55°
5
72°
52°
6
79°
55°
7
73°
61°
8
63°
54°
9
64°
48°
10
64°
50°
11
70°
55°
12
70°
52°
13
68°
63°
14
74°
62°
15
71°
49°
16
68°
53°
17
68°
48°
18
68°
59°
19
71°
56°
20
71°
53°
21
67°
53°
22
68°
54°
23
69°
52°
24
68°
53°
25
69°
53°
26
68°
51°
27
64°
51°
28
65°
52°
29
65°
51°
30
64°
49°
1
65°
47°
2
65°
51°
3
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Petworth
Petworth's September 2026 forecast shows daily high temperatures ranging from 64° to 74°, with overnight lows between 47° and 62°. The average high for September is 68° with an average low of 52°. 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 Petworth. See also: October | November | December.
