S
M
T
W
T
F
S
30
74°
54°
31
73°
55°
1
70°
56°
2
72°
55°
3
75°
51°
4
73°
54°
5
72°
54°
6
73°
53°
7
74°
54°
8
74°
54°
9
73°
54°
10
74°
53°
11
73°
54°
12
73°
54°
13
74°
53°
14
73°
53°
15
73°
52°
16
72°
46°
17
71°
45°
18
65°
51°
19
68°
52°
20
71°
52°
21
70°
51°
22
71°
46°
23
70°
45°
24
Hist. Avg.
62°
48°
25
Hist. Avg.
62°
48°
26
Hist. Avg.
62°
47°
27
Hist. Avg.
61°
47°
28
Hist. Avg.
61°
47°
29
Hist. Avg.
61°
47°
30
Hist. Avg.
60°
47°
1
Hist. Avg.
60°
46°
2
Hist. Avg.
60°
46°
3
Hist. Avg.
60°
46°
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 65° to 75°, with overnight lows between 45° and 56°. The average high for September is 72° 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 Rockland. See also: October | November | December.
