S
M
T
W
T
F
S
30
92°
77°
31
90°
77°
1
91°
76°
2
91°
77°
3
90°
77°
4
87°
76°
5
88°
77°
6
88°
76°
7
87°
75°
8
88°
75°
9
87°
77°
10
87°
77°
11
88°
76°
12
87°
77°
13
88°
77°
14
91°
74°
15
91°
75°
16
90°
75°
17
91°
74°
18
90°
73°
19
91°
74°
20
89°
73°
21
87°
72°
22
87°
72°
23
88°
72°
24
87°
72°
25
89°
72°
26
86°
73°
27
87°
72°
28
87°
71°
29
86°
72°
30
86°
73°
1
87°
73°
2
86°
72°
3
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Union Park
Union Park's September 2026 forecast shows daily high temperatures ranging from 86° to 92°, with overnight lows between 70° and 77°. The average high for September is 88° with an average low of 74°. 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 Union Park. See also: October | November | December.
