S
M
T
W
T
F
S
30
82°
62°
31
87°
68°
1
84°
69°
2
92°
70°
3
92°
70°
4
83°
67°
5
84°
66°
6
78°
58°
7
81°
57°
8
84°
69°
9
86°
68°
10
72°
56°
11
78°
57°
12
81°
63°
13
81°
60°
14
82°
63°
15
79°
57°
16
74°
54°
17
72°
49°
18
68°
48°
19
66°
45°
20
70°
48°
21
67°
47°
22
71°
52°
23
72°
52°
24
76°
51°
25
77°
53°
26
77°
52°
27
76°
51°
28
77°
52°
29
77°
52°
30
76°
51°
1
76°
51°
2
73°
44°
3
63°
40°
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 63° to 86°, with overnight lows between 40° and 69°. The average high for September is 75° with an average low of 53°. 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.
