S
M
T
W
T
F
S
30
84°
57°
31
78°
62°
1
77°
57°
2
83°
65°
3
85°
66°
4
87°
62°
5
86°
57°
6
78°
54°
7
78°
54°
8
79°
61°
9
80°
57°
10
77°
54°
11
74°
51°
12
73°
50°
13
75°
57°
14
74°
50°
15
75°
49°
16
73°
48°
17
71°
49°
18
71°
49°
19
70°
48°
20
69°
48°
21
70°
49°
22
71°
49°
23
72°
52°
24
75°
55°
25
77°
56°
26
77°
47°
27
76°
52°
28
69°
56°
29
71°
49°
30
75°
51°
1
71°
52°
2
67°
45°
3
65°
52°
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 65° to 87°, with overnight lows between 45° and 66°. The average high for September is 75° with an average low of 53°. 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.
