S
M
T
W
T
F
S
30
91°
69°
31
92°
70°
1
90°
71°
2
90°
70°
3
89°
70°
4
91°
71°
5
92°
71°
6
90°
70°
7
88°
71°
8
89°
70°
9
87°
71°
10
88°
69°
11
90°
68°
12
89°
69°
13
90°
68°
14
89°
68°
15
89°
70°
16
90°
69°
17
89°
67°
18
89°
69°
19
88°
69°
20
88°
68°
21
87°
67°
22
88°
68°
23
88°
68°
24
87°
65°
25
88°
65°
26
87°
64°
27
86°
65°
28
87°
66°
29
86°
65°
30
85°
66°
1
84°
64°
2
84°
65°
3
86°
66°
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 84° to 92°, with overnight lows between 64° and 71°. The average high for September is 88° with an average low of 68°. 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.
