S
M
T
W
T
F
S
30
83°
69°
31
86°
69°
1
95°
72°
2
96°
74°
3
88°
74°
4
93°
74°
5
81°
70°
6
77°
63°
7
78°
59°
8
85°
61°
9
79°
71°
10
77°
59°
11
80°
56°
12
87°
61°
13
72°
53°
14
71°
50°
15
83°
66°
16
74°
64°
17
76°
65°
18
72°
62°
19
71°
63°
20
68°
62°
21
N/A
22
60°
54°
23
63°
54°
24
67°
53°
25
69°
53°
26
67°
53°
27
67°
55°
28
69°
53°
29
69°
52°
30
68°
51°
1
68°
52°
2
67°
46°
3
62°
52°
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 60° to 69°, with overnight lows between 46° and 55°. The average high for September is 66° with an average low of 52°. 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.
