S
M
T
W
T
F
S
30
93°
71°
31
92°
70°
1
92°
71°
2
91°
70°
3
91°
70°
4
90°
69°
5
89°
68°
6
90°
69°
7
90°
68°
8
89°
67°
9
89°
66°
10
88°
68°
11
89°
67°
12
90°
67°
13
90°
68°
14
89°
68°
15
90°
67°
16
87°
66°
17
85°
66°
18
83°
65°
19
87°
64°
20
87°
65°
21
87°
55°
22
82°
54°
23
80°
62°
24
83°
59°
25
85°
59°
26
87°
62°
27
87°
60°
28
84°
61°
29
84°
61°
30
87°
51°
1
86°
51°
2
74°
54°
3
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lubbock
Lubbock's September 2026 forecast shows daily high temperatures ranging from 73° to 93°, with overnight lows between 51° and 71°. The average high for September is 87° with an average low of 64°. 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 Lubbock. See also: October | November | December.