S
M
T
W
T
F
S
30
74°
51°
31
72°
48°
1
77°
46°
2
71°
53°
3
77°
59°
4
74°
56°
5
69°
54°
6
68°
46°
7
76°
52°
8
68°
49°
9
66°
60°
10
72°
48°
11
63°
45°
12
72°
53°
13
74°
54°
14
69°
50°
15
67°
48°
16
65°
45°
17
64°
50°
18
65°
49°
19
66°
44°
20
70°
49°
21
59°
48°
22
60°
47°
23
68°
47°
24
68°
46°
25
67°
47°
26
67°
43°
27
61°
40°
28
65°
45°
29
67°
46°
30
68°
47°
1
68°
47°
2
67°
46°
3
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Danville
Danville's September 2026 forecast shows daily high temperatures ranging from 59° to 76°, with overnight lows between 40° and 60°. The average high for September is 67° 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 Danville. See also: October | November | December.
