S
M
T
W
T
F
S
30
69°
49°
31
69°
51°
1
68°
52°
2
70°
50°
3
69°
49°
4
68°
50°
5
69°
52°
6
68°
47°
7
69°
50°
8
68°
50°
9
70°
50°
10
71°
47°
11
67°
50°
12
68°
46°
13
70°
50°
14
70°
48°
15
69°
44°
16
66°
46°
17
67°
44°
18
68°
48°
19
68°
50°
20
67°
50°
21
69°
49°
22
69°
49°
23
67°
47°
24
66°
48°
25
66°
48°
26
64°
47°
27
65°
48°
28
66°
47°
29
66°
45°
30
61°
40°
1
62°
48°
2
62°
46°
3
Hist. Avg.
61°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chislehurst
Chislehurst's September 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 40° and 52°. The average high for September is 67° with an average low of 48°. 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 Chislehurst. See also: October | November | December.
