S
M
T
W
T
F
S
30
78°
67°
31
82°
64°
1
77°
55°
2
81°
55°
3
81°
64°
4
84°
34°
5
82°
63°
6
81°
66°
7
75°
36°
8
84°
64°
9
72°
54°
10
81°
52°
11
79°
57°
12
64°
34°
13
64°
46°
14
61°
48°
15
66°
50°
16
66°
45°
17
70°
46°
18
63°
57°
19
63°
54°
20
67°
52°
21
63°
44°
22
64°
45°
23
66°
58°
24
62°
58°
25
68°
60°
26
66°
55°
27
71°
55°
28
66°
50°
29
63°
43°
30
63°
49°
1
65°
47°
2
61°
46°
3
68°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dunvilla
Dunvilla's September 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 43° and 60°. The average high for September is 65° with an average low of 52°. 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 Dunvilla. See also: October | November | December.