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