S
M
T
W
T
F
S
30
91°
62°
31
93°
66°
1
95°
67°
2
97°
69°
3
98°
69°
4
99°
71°
5
95°
72°
6
86°
66°
7
86°
59°
8
90°
69°
9
91°
71°
10
82°
66°
11
79°
64°
12
83°
65°
13
88°
66°
14
88°
67°
15
87°
63°
16
82°
59°
17
79°
55°
18
79°
54°
19
76°
54°
20
75°
51°
21
76°
55°
22
77°
60°
23
80°
59°
24
82°
61°
25
83°
61°
26
82°
60°
27
82°
60°
28
81°
59°
29
82°
60°
30
82°
59°
1
81°
57°
2
79°
49°
3
68°
46°
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 68° to 91°, with overnight lows between 46° and 71°. The average high for September is 81° with an average low of 60°. 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.
