S
M
T
W
T
F
S
30
82°
65°
31
82°
64°
1
83°
65°
2
81°
65°
3
85°
64°
4
87°
63°
5
80°
56°
6
82°
57°
7
83°
60°
8
86°
62°
9
86°
61°
10
85°
61°
11
79°
53°
12
79°
57°
13
84°
61°
14
85°
54°
15
77°
55°
16
75°
54°
17
76°
52°
18
77°
56°
19
82°
52°
20
77°
53°
21
82°
58°
22
82°
59°
23
81°
57°
24
82°
54°
25
82°
56°
26
81°
58°
27
81°
58°
28
79°
57°
29
81°
55°
30
78°
55°
1
79°
56°
2
79°
54°
3
78°
50°
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 75° to 87°, with overnight lows between 50° and 65°. The average high for September is 81° with an average low of 58°. 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.
