S
M
T
W
T
F
S
30
66°
54°
31
66°
50°
1
63°
49°
2
64°
51°
3
63°
50°
4
63°
48°
5
64°
48°
6
62°
49°
7
63°
48°
8
63°
50°
9
62°
48°
10
63°
49°
11
67°
49°
12
63°
47°
13
63°
52°
14
62°
51°
15
62°
46°
16
63°
46°
17
62°
45°
18
62°
45°
19
61°
46°
20
61°
46°
21
62°
49°
22
61°
46°
23
62°
46°
24
61°
47°
25
60°
44°
26
61°
50°
27
62°
50°
28
64°
49°
29
64°
47°
30
63°
49°
1
63°
49°
2
62°
46°
3
62°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Derby
Derby's September 2026 forecast shows daily high temperatures ranging from 60° to 67°, with overnight lows between 44° and 54°. The average high for September is 63° with an average low of 48°. 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.
