S
M
T
W
T
F
S
30
84°
59°
31
80°
58°
1
68°
62°
2
72°
62°
3
75°
62°
4
84°
64°
5
73°
60°
6
73°
54°
7
80°
51°
8
79°
56°
9
74°
53°
10
86°
69°
11
77°
52°
12
76°
46°
13
67°
61°
14
72°
50°
15
71°
45°
16
81°
61°
17
76°
63°
18
76°
45°
19
65°
47°
20
59°
50°
21
65°
48°
22
63°
46°
23
63°
46°
24
64°
48°
25
70°
48°
26
67°
47°
27
71°
49°
28
69°
50°
29
67°
45°
30
62°
47°
1
62°
49°
2
70°
48°
3
62°
49°
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 81°, with overnight lows between 45° and 63°. The average high for September is 67° with an average low of 49°. 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.
