S
M
T
W
T
F
S
30
74°
50°
31
73°
46°
1
68°
48°
2
68°
46°
3
66°
46°
4
67°
46°
5
67°
47°
6
68°
46°
7
71°
52°
8
73°
53°
9
66°
45°
10
66°
50°
11
70°
52°
12
71°
50°
13
69°
51°
14
72°
48°
15
67°
44°
16
64°
44°
17
62°
43°
18
66°
50°
19
71°
49°
20
Hist. Avg.
65°
47°
21
Hist. Avg.
65°
46°
22
Hist. Avg.
64°
46°
23
Hist. Avg.
64°
46°
24
Hist. Avg.
63°
45°
25
Hist. Avg.
63°
45°
26
Hist. Avg.
63°
44°
27
Hist. Avg.
62°
44°
28
Hist. Avg.
62°
44°
29
Hist. Avg.
61°
43°
30
Hist. Avg.
61°
43°
1
Hist. Avg.
61°
43°
2
Hist. Avg.
60°
42°
3
Hist. Avg.
60°
42°
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 62° to 74°, with overnight lows between 43° and 53°. The average high for September is 69° with an average low of 48°. 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.
