S
M
T
W
T
F
S
30
76°
55°
31
77°
54°
1
76°
55°
2
75°
54°
3
75°
53°
4
76°
55°
5
78°
58°
6
75°
57°
7
74°
55°
8
79°
52°
9
74°
56°
10
77°
60°
11
80°
58°
12
81°
58°
13
80°
50°
14
74°
56°
15
72°
50°
16
72°
50°
17
70°
57°
18
76°
52°
19
74°
55°
20
71°
48°
21
77°
47°
22
68°
45°
23
74°
54°
24
77°
47°
25
71°
45°
26
Hist. Avg.
72°
53°
27
Hist. Avg.
71°
52°
28
Hist. Avg.
71°
52°
29
Hist. Avg.
70°
52°
30
Hist. Avg.
70°
51°
1
Hist. Avg.
69°
51°
2
Hist. Avg.
69°
50°
3
Hist. Avg.
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in South Addison
South Addison's September 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 45° and 60°. 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 South Addison. See also: October | November | December.
