S
M
T
W
T
F
S
30
93°
66°
31
97°
67°
1
98°
69°
2
100°
69°
3
102°
72°
4
102°
74°
5
97°
69°
6
85°
69°
7
87°
63°
8
88°
58°
9
91°
57°
10
97°
67°
11
96°
67°
12
86°
72°
13
92°
72°
14
91°
67°
15
83°
56°
16
88°
58°
17
91°
66°
18
88°
68°
19
82°
66°
20
87°
68°
21
86°
65°
22
75°
59°
23
71°
56°
24
74°
56°
25
79°
55°
26
75°
56°
27
77°
55°
28
76°
49°
29
80°
59°
30
81°
58°
1
77°
56°
2
80°
59°
3
81°
57°
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 71° to 91°, with overnight lows between 49° and 68°. The average high for September is 81° with an average low of 59°. 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.
