S
M
T
W
T
F
S
30
96°
68°
31
97°
69°
1
96°
70°
2
96°
69°
3
95°
70°
4
95°
71°
5
94°
71°
6
95°
70°
7
95°
71°
8
93°
70°
9
94°
71°
10
95°
70°
11
94°
69°
12
95°
70°
13
95°
70°
14
94°
68°
15
94°
61°
16
86°
61°
17
84°
66°
18
86°
67°
19
86°
66°
20
87°
62°
21
84°
62°
22
85°
65°
23
87°
65°
24
88°
64°
25
90°
65°
26
90°
64°
27
89°
62°
28
88°
62°
29
87°
61°
30
88°
61°
1
86°
60°
2
88°
61°
3
88°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Brownwood
Brownwood's September 2026 forecast shows daily high temperatures ranging from 84° to 97°, with overnight lows between 60° and 71°. The average high for September is 91° with an average low of 66°. 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 Brownwood. See also: October | November | December.