S
M
T
W
T
F
S
30
65°
55°
31
69°
55°
1
69°
54°
2
70°
53°
3
65°
52°
4
68°
53°
5
67°
48°
6
66°
50°
7
65°
51°
8
67°
50°
9
64°
50°
10
63°
48°
11
63°
47°
12
64°
47°
13
62°
48°
14
62°
50°
15
63°
51°
16
64°
49°
17
64°
51°
18
65°
47°
19
66°
46°
20
61°
48°
21
61°
47°
22
62°
45°
23
60°
44°
24
60°
47°
25
61°
50°
26
60°
49°
27
64°
45°
28
62°
44°
29
59°
43°
30
59°
43°
1
58°
42°
2
59°
44°
3
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Castle Donington
Castle Donington's September 2026 forecast shows daily high temperatures ranging from 58° to 70°, with overnight lows between 42° and 55°. The average high for September is 63° 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 Castle Donington. See also: October | November | December.
