S
M
T
W
T
F
S
30
90°
71°
31
92°
72°
1
90°
71°
2
90°
67°
3
89°
66°
4
87°
66°
5
88°
67°
6
89°
71°
7
91°
73°
8
94°
73°
9
95°
72°
10
94°
71°
11
92°
71°
12
88°
72°
13
91°
67°
14
93°
64°
15
87°
65°
16
89°
64°
17
86°
63°
18
87°
64°
19
88°
63°
20
89°
66°
21
91°
67°
22
85°
68°
23
85°
68°
24
86°
67°
25
84°
67°
26
85°
66°
27
88°
65°
28
87°
66°
29
89°
66°
30
88°
65°
1
89°
64°
2
89°
59°
3
90°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Waco
East Waco's September 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 59° and 73°. The average high for September is 89° with an average low of 67°. 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 East Waco. See also: October | November | December.