S
M
T
W
T
F
S
30
84°
54°
31
88°
55°
1
88°
57°
2
84°
53°
3
82°
53°
4
82°
54°
5
83°
55°
6
84°
54°
7
83°
53°
8
83°
56°
9
82°
57°
10
83°
60°
11
84°
59°
12
85°
59°
13
85°
61°
14
88°
60°
15
89°
59°
16
89°
58°
17
88°
57°
18
87°
57°
19
87°
56°
20
85°
58°
21
87°
58°
22
87°
57°
23
86°
58°
24
82°
58°
25
78°
56°
26
77°
56°
27
78°
57°
28
79°
58°
29
80°
57°
30
79°
58°
1
81°
54°
2
79°
54°
3
79°
57°
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 77° to 89°, with overnight lows between 53° and 61°. The average high for September is 84° with an average low of 57°. 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.
