S
M
T
W
T
F
S
30
99°
73°
31
99°
73°
1
100°
73°
2
103°
76°
3
101°
79°
4
N/A
5
98°
76°
6
97°
76°
7
97°
75°
8
96°
74°
9
95°
73°
10
98°
72°
11
100°
74°
12
98°
73°
13
97°
73°
14
98°
72°
15
97°
72°
16
96°
70°
17
97°
73°
18
90°
66°
19
91°
69°
20
92°
70°
21
92°
70°
22
92°
70°
23
91°
69°
24
83°
69°
25
83°
68°
26
86°
68°
27
86°
67°
28
85°
68°
29
86°
68°
30
87°
64°
1
81°
58°
2
80°
58°
3
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lockhart
Lockhart's September 2026 forecast shows daily high temperatures ranging from 80° to 100°, with overnight lows between 57° and 76°. The average high for September is 91° with an average low of 69°. 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 Lockhart. See also: October | November | December.
