S
M
T
W
T
F
S
30
74°
56°
31
74°
59°
1
78°
57°
2
79°
61°
3
78°
61°
4
78°
55°
5
73°
56°
6
73°
55°
7
74°
58°
8
76°
60°
9
73°
58°
10
72°
59°
11
77°
58°
12
78°
59°
13
77°
59°
14
77°
60°
15
76°
59°
16
76°
59°
17
75°
57°
18
75°
51°
19
72°
52°
20
71°
48°
21
68°
50°
22
68°
53°
23
72°
54°
24
73°
49°
25
70°
49°
26
72°
55°
27
70°
53°
28
67°
53°
29
70°
52°
30
71°
52°
1
69°
51°
2
70°
52°
3
66°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rock
Rock's September 2026 forecast shows daily high temperatures ranging from 66° to 79°, with overnight lows between 48° and 61°. The average high for September is 73° with an average low of 55°. 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. See also: October | November | December.
