S
M
T
W
T
F
S
30
73°
57°
31
70°
54°
1
70°
52°
2
68°
57°
3
75°
63°
4
68°
57°
5
70°
55°
6
75°
55°
7
70°
59°
8
64°
52°
9
63°
52°
10
66°
52°
11
68°
55°
12
70°
54°
13
72°
61°
14
75°
61°
15
68°
55°
16
63°
54°
17
N/A
18
63°
59°
19
70°
51°
20
63°
49°
21
68°
57°
22
70°
56°
23
66°
51°
24
66°
53°
25
65°
52°
26
65°
49°
27
64°
48°
28
61°
47°
29
62°
48°
30
64°
50°
1
65°
49°
2
63°
47°
3
62°
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 61° to 70°, with overnight lows between 43° and 59°. 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 Derby. See also: October | November | December.
