S
M
T
W
T
F
S
30
94°
70°
31
93°
69°
1
93°
69°
2
92°
68°
3
91°
68°
4
89°
64°
5
89°
68°
6
92°
67°
7
91°
68°
8
90°
67°
9
89°
68°
10
90°
67°
11
90°
65°
12
84°
64°
13
84°
66°
14
85°
66°
15
83°
65°
16
84°
65°
17
83°
64°
18
85°
64°
19
82°
58°
20
81°
57°
21
80°
57°
22
82°
58°
23
84°
61°
24
85°
62°
25
86°
63°
26
85°
61°
27
84°
60°
28
80°
56°
29
78°
54°
30
78°
57°
1
Hist. Avg.
80°
56°
2
Hist. Avg.
79°
56°
3
Hist. Avg.
79°
56°
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 78° to 94°, with overnight lows between 54° and 70°. The average high for September is 86° with an average low of 64°. 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.
