S
M
T
W
T
F
S
30
88°
68°
31
93°
71°
1
95°
70°
2
95°
73°
3
94°
69°
4
91°
67°
5
87°
66°
6
86°
63°
7
85°
62°
8
85°
62°
9
82°
63°
10
83°
57°
11
80°
48°
12
83°
61°
13
84°
62°
14
80°
61°
15
81°
60°
16
81°
61°
17
82°
61°
18
82°
60°
19
81°
61°
20
82°
61°
21
82°
60°
22
81°
60°
23
82°
59°
24
82°
59°
25
81°
58°
26
82°
57°
27
81°
58°
28
81°
58°
29
80°
57°
30
79°
56°
1
79°
56°
2
78°
55°
3
78°
55°
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 78° to 95°, with overnight lows between 48° and 73°. The average high for September is 83° with an average low of 61°. 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.
