S
M
T
W
T
F
S
30
83°
54°
31
79°
66°
1
92°
69°
2
76°
67°
3
88°
67°
4
85°
67°
5
80°
58°
6
78°
55°
7
76°
51°
8
80°
49°
9
85°
56°
10
84°
68°
11
79°
57°
12
75°
54°
13
83°
67°
14
73°
49°
15
73°
45°
16
82°
53°
17
82°
64°
18
79°
59°
19
70°
56°
20
71°
63°
21
68°
56°
22
65°
52°
23
68°
41°
24
68°
41°
25
73°
50°
26
72°
50°
27
70°
53°
28
69°
49°
29
74°
48°
30
73°
52°
1
72°
51°
2
71°
54°
3
72°
48°
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 74°, with overnight lows between 41° and 54°. The average high for September is 71° with an average low of 49°. 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.
