S
M
T
W
T
F
S
30
79°
63°
31
77°
64°
1
81°
68°
2
84°
70°
3
84°
64°
4
81°
63°
5
73°
63°
6
75°
57°
7
73°
54°
8
77°
59°
9
79°
63°
10
72°
66°
11
75°
59°
12
79°
63°
13
75°
63°
14
64°
52°
15
75°
50°
16
82°
63°
17
77°
70°
18
72°
61°
19
75°
57°
20
70°
64°
21
64°
55°
22
55°
50°
23
57°
48°
24
61°
45°
25
64°
41°
26
63°
45°
27
61°
46°
28
55°
52°
29
61°
54°
30
70°
52°
1
77°
59°
2
70°
52°
3
61°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Addison
Addison's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Addison. See also: October | November | December.
