S
M
T
W
T
F
S
26
59°
34°
27
70°
34°
28
61°
48°
29
55°
45°
30
48°
34°
1
50°
28°
2
46°
36°
3
54°
34°
4
70°
41°
5
72°
46°
6
46°
41°
7
52°
32°
8
52°
36°
9
55°
36°
10
59°
34°
11
54°
30°
12
59°
28°
13
63°
43°
14
48°
43°
15
63°
39°
16
77°
36°
17
81°
48°
18
88°
54°
19
84°
59°
20
72°
43°
21
59°
41°
22
63°
36°
23
51°
45°
24
57°
52°
25
72°
52°
26
80°
56°
27
78°
52°
28
70°
45°
29
64°
44°
30
65°
43°
31
67°
46°
1
68°
49°
2
71°
48°
3
71°
50°
4
72°
52°
5
71°
49°
6
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rhode Island
Rhode Island's May 2026 forecast shows daily high temperatures ranging from 51° to 80°, with overnight lows between 43° and 56°. The average high for May is 68° with an average low of 49°. 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 Rhode Island. See also: June | July | August.
