S
M
T
W
T
F
S
30
82°
66°
31
88°
61°
1
82°
54°
2
84°
62°
3
86°
64°
4
90°
68°
5
91°
65°
6
83°
65°
7
78°
64°
8
81°
56°
9
73°
53°
10
73°
54°
11
74°
48°
12
71°
47°
13
69°
50°
14
70°
49°
15
71°
46°
16
74°
52°
17
75°
53°
18
76°
52°
19
75°
50°
20
65°
45°
21
69°
50°
22
68°
49°
23
73°
52°
24
74°
49°
25
67°
44°
26
60°
40°
27
62°
36°
28
58°
45°
29
70°
40°
30
57°
42°
1
64°
45°
2
56°
40°
3
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ada
Ada's September 2026 forecast shows daily high temperatures ranging from 56° to 91°, with overnight lows between 36° and 68°. The average high for September is 72° with an average low of 51°. 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 Ada. See also: October | November | December.