S
M
T
W
T
F
S
30
79°
60°
31
79°
59°
1
80°
55°
2
72°
55°
3
72°
56°
4
73°
53°
5
72°
52°
6
74°
59°
7
77°
58°
8
72°
58°
9
71°
57°
10
74°
58°
11
78°
57°
12
78°
57°
13
77°
58°
14
78°
47°
15
70°
47°
16
68°
48°
17
69°
47°
18
68°
45°
19
66°
47°
20
67°
49°
21
73°
52°
22
74°
53°
23
74°
45°
24
73°
43°
25
67°
43°
26
67°
46°
27
71°
50°
28
71°
51°
29
72°
44°
30
69°
42°
1
65°
41°
2
64°
44°
3
69°
47°
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 64° to 80°, with overnight lows between 41° and 60°. The average high for September is 72° 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 Danville. See also: October | November | December.
