S
M
T
W
T
F
S
30
90°
76°
31
90°
76°
1
89°
75°
2
90°
76°
3
89°
76°
4
89°
75°
5
90°
76°
6
89°
76°
7
88°
77°
8
89°
77°
9
88°
76°
10
87°
77°
11
88°
76°
12
87°
76°
13
87°
77°
14
88°
75°
15
89°
76°
16
90°
76°
17
88°
75°
18
88°
75°
19
89°
74°
20
89°
76°
21
90°
77°
22
90°
77°
23
89°
76°
24
87°
75°
25
88°
74°
26
88°
75°
27
87°
74°
28
86°
73°
29
85°
74°
30
85°
73°
1
87°
74°
2
87°
74°
3
87°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Worth
Lake Worth's September 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 73° and 77°. The average high for September is 88° with an average low of 75°. 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 Lake Worth. See also: October | November | December.