S
M
T
W
T
F
S
30
76°
51°
31
73°
49°
1
70°
48°
2
66°
48°
3
63°
59°
4
74°
58°
5
70°
58°
6
69°
52°
7
79°
48°
8
77°
52°
9
64°
51°
10
85°
64°
11
72°
48°
12
68°
42°
13
62°
58°
14
70°
53°
15
65°
43°
16
67°
46°
17
70°
52°
18
76°
54°
19
64°
42°
20
60°
38°
21
65°
52°
22
64°
42°
23
63°
40°
24
67°
36°
25
N/A
26
70°
56°
27
62°
55°
28
58°
54°
29
61°
56°
30
64°
53°
1
69°
58°
2
70°
49°
3
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Rockland
Rockland's September 2026 forecast shows daily high temperatures ranging from 64° to 70°, with overnight lows between 40° and 58°. The average high for September is 67° with an average low of 50°. 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 Rockland. See also: October | November | December.
