S
M
T
W
T
F
S
30
86°
65°
31
N/A
1
90°
63°
2
82°
65°
3
86°
68°
4
90°
69°
5
84°
64°
6
86°
63°
7
80°
64°
8
79°
60°
9
82°
55°
10
74°
56°
11
74°
51°
12
76°
57°
13
75°
56°
14
77°
56°
15
77°
55°
16
75°
51°
17
74°
55°
18
76°
55°
19
75°
53°
20
75°
53°
21
76°
55°
22
76°
55°
23
75°
54°
24
76°
54°
25
76°
53°
26
75°
52°
27
76°
53°
28
75°
52°
29
74°
51°
30
74°
53°
1
73°
52°
2
74°
51°
3
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rock Creek
Rock Creek's September 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 50° and 69°. The average high for September is 78° with an average low of 56°. 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 Rock Creek. See also: October | November | December.
