S
M
T
W
T
F
S
26
57°
47°
27
57°
46°
28
62°
44°
29
64°
46°
30
61°
47°
1
61°
50°
2
57°
50°
3
54°
49°
4
59°
51°
5
59°
51°
6
56°
50°
7
55°
49°
8
60°
49°
9
56°
47°
10
67°
52°
11
62°
51°
12
59°
50°
13
61°
48°
14
63°
43°
15
60°
45°
16
58°
48°
17
67°
45°
18
72°
50°
19
77°
51°
20
78°
48°
21
61°
47°
22
65°
49°
23
56°
49°
24
53°
48°
25
52°
48°
26
57°
44°
27
68°
48°
28
62°
48°
29
61°
44°
30
64°
43°
31
68°
43°
1
71°
44°
2
66°
46°
3
67°
45°
4
68°
45°
5
65°
45°
6
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rockland
Rockland's May 2026 forecast shows daily high temperatures ranging from 57° to 71°, with overnight lows between 43° and 48°. The average high for May is 65° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Rockland. See also: June | July | August.
