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