S
M
T
W
T
F
S
30
73°
57°
31
70°
54°
1
70°
56°
2
68°
61°
3
73°
61°
4
67°
51°
5
67°
53°
6
72°
56°
7
67°
54°
8
63°
50°
9
64°
48°
10
61°
48°
11
65°
50°
12
66°
50°
13
67°
51°
14
65°
48°
15
66°
51°
16
62°
47°
17
62°
51°
18
65°
51°
19
65°
50°
20
61°
48°
21
63°
51°
22
65°
51°
23
65°
46°
24
62°
45°
25
63°
45°
26
64°
48°
27
63°
47°
28
63°
49°
29
64°
50°
30
63°
50°
1
64°
49°
2
63°
49°
3
63°
48°
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 61° to 73°, with overnight lows between 45° and 61°. The average high for September is 65° with an average low of 50°. 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.
