S
M
T
W
T
F
S
30
77°
53°
31
74°
50°
1
71°
51°
2
71°
50°
3
72°
50°
4
72°
51°
5
71°
51°
6
70°
53°
7
72°
58°
8
71°
52°
9
70°
51°
10
71°
50°
11
70°
50°
12
71°
51°
13
70°
53°
14
69°
51°
15
70°
53°
16
70°
48°
17
69°
47°
18
69°
48°
19
68°
55°
20
68°
53°
21
Hist. Avg.
70°
49°
22
Hist. Avg.
69°
48°
23
Hist. Avg.
69°
48°
24
Hist. Avg.
68°
47°
25
Hist. Avg.
68°
47°
26
Hist. Avg.
68°
47°
27
Hist. Avg.
67°
46°
28
Hist. Avg.
67°
46°
29
Hist. Avg.
67°
46°
30
Hist. Avg.
66°
45°
1
Hist. Avg.
66°
45°
2
Hist. Avg.
65°
44°
3
Hist. Avg.
65°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Derby
Derby's September 2026 forecast shows daily high temperatures ranging from 68° to 77°, with overnight lows between 47° and 58°. The average high for September is 71° 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 Derby. See also: October | November | December.
