S
M
T
W
T
F
S
30
79°
53°
31
80°
53°
1
80°
54°
2
79°
53°
3
80°
46°
4
77°
43°
5
71°
46°
6
72°
52°
7
77°
51°
8
77°
52°
9
78°
51°
10
75°
50°
11
77°
49°
12
77°
50°
13
76°
51°
14
76°
51°
15
77°
50°
16
76°
42°
17
74°
49°
18
74°
46°
19
73°
43°
20
71°
40°
21
65°
37°
22
65°
45°
23
66°
43°
24
66°
39°
25
64°
37°
26
63°
37°
27
65°
43°
28
70°
44°
29
71°
41°
30
66°
39°
1
62°
43°
2
62°
35°
3
62°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Dorset
South Dorset's September 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 35° and 54°. The average high for September is 72° with an average low of 46°. 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 South Dorset. See also: October | November | December.
