S
M
T
W
T
F
S
30
74°
43°
31
80°
38°
1
82°
51°
2
76°
46°
3
73°
49°
4
N/A
5
77°
44°
6
81°
48°
7
63°
40°
8
70°
42°
9
77°
48°
10
79°
50°
11
78°
49°
12
74°
47°
13
70°
44°
14
73°
46°
15
72°
45°
16
67°
43°
17
66°
45°
18
66°
38°
19
60°
33°
20
61°
36°
21
62°
39°
22
66°
43°
23
71°
38°
24
59°
32°
25
56°
30°
26
57°
32°
27
61°
37°
28
67°
39°
29
69°
40°
30
68°
39°
1
66°
40°
2
67°
40°
3
68°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Dillon
Dillon's September 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 30° and 50°. The average high for September is 68° with an average low of 41°. 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 Dillon. See also: October | November | December.
