S
M
T
W
T
F
S
30
90°
76°
31
89°
76°
1
89°
77°
2
90°
79°
3
90°
79°
4
90°
79°
5
90°
75°
6
91°
77°
7
90°
76°
8
89°
75°
9
91°
74°
10
92°
75°
11
92°
75°
12
86°
77°
13
87°
78°
14
87°
78°
15
86°
78°
16
86°
77°
17
87°
77°
18
87°
78°
19
88°
77°
20
87°
77°
21
86°
76°
22
85°
77°
23
85°
75°
24
86°
75°
25
85°
76°
26
87°
75°
27
86°
76°
28
86°
76°
29
87°
75°
30
86°
76°
1
85°
75°
2
84°
76°
3
84°
75°
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 92°, with overnight lows between 74° and 79°. 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.