S
M
T
W
T
F
S
30
90°
76°
31
89°
76°
1
91°
76°
2
90°
75°
3
94°
79°
4
94°
79°
5
89°
76°
6
93°
75°
7
91°
75°
8
91°
74°
9
89°
78°
10
91°
79°
11
88°
76°
12
91°
76°
13
91°
74°
14
90°
74°
15
89°
77°
16
88°
77°
17
88°
76°
18
88°
75°
19
89°
76°
20
88°
75°
21
90°
76°
22
89°
75°
23
89°
75°
24
88°
74°
25
89°
75°
26
88°
74°
27
84°
76°
28
84°
76°
29
84°
75°
30
84°
76°
1
84°
76°
2
84°
75°
3
85°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Palm Beach Gardens
Palm Beach Gardens's September 2026 forecast shows daily high temperatures ranging from 84° to 90°, with overnight lows between 74° and 77°. The average high for September is 87° with an average low of 76°. 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 Palm Beach Gardens. See also: October | November | December.