S
M
T
W
T
F
S
30
104°
74°
31
103°
75°
1
103°
74°
2
103°
77°
3
101°
75°
4
104°
75°
5
102°
75°
6
103°
75°
7
104°
74°
8
105°
78°
9
105°
78°
10
92°
74°
11
100°
75°
12
105°
76°
13
102°
77°
14
101°
77°
15
99°
75°
16
101°
72°
17
97°
71°
18
87°
67°
19
84°
61°
20
83°
61°
21
87°
63°
22
89°
64°
23
86°
62°
24
83°
60°
25
87°
67°
26
87°
66°
27
86°
66°
28
87°
65°
29
86°
65°
30
86°
64°
1
85°
63°
2
86°
64°
3
86°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lawton
Lawton's September 2026 forecast shows daily high temperatures ranging from 83° to 105°, with overnight lows between 60° and 77°. The average high for September is 90° 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 Lawton. See also: October | November | December.
