S
M
T
W
T
F
S
30
84°
58°
31
79°
57°
1
78°
57°
2
78°
58°
3
77°
61°
4
77°
56°
5
82°
56°
6
77°
55°
7
76°
54°
8
75°
55°
9
76°
54°
10
78°
60°
11
80°
59°
12
74°
58°
13
73°
60°
14
80°
58°
15
Hist. Avg.
72°
50°
16
Hist. Avg.
71°
49°
17
Hist. Avg.
71°
49°
18
Hist. Avg.
71°
49°
19
Hist. Avg.
70°
48°
20
Hist. Avg.
70°
48°
21
Hist. Avg.
70°
47°
22
Hist. Avg.
69°
47°
23
Hist. Avg.
69°
47°
24
Hist. Avg.
69°
46°
25
Hist. Avg.
68°
46°
26
Hist. Avg.
68°
46°
27
Hist. Avg.
68°
45°
28
Hist. Avg.
67°
45°
29
Hist. Avg.
67°
45°
30
Hist. Avg.
67°
44°
1
Hist. Avg.
66°
44°
2
Hist. Avg.
66°
43°
3
Hist. Avg.
65°
43°
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 73° to 84°, with overnight lows between 54° and 61°. The average high for September is 78° with an average low of 57°. 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.
