S
M
T
W
T
F
S
26
57°
45°
27
57°
46°
28
55°
48°
29
57°
48°
30
57°
48°
1
54°
48°
2
54°
48°
3
55°
48°
4
59°
50°
5
61°
50°
6
59°
50°
7
59°
48°
8
59°
46°
9
57°
48°
10
59°
50°
11
64°
50°
12
68°
51°
13
64°
48°
14
66°
47°
15
64°
46°
16
62°
42°
17
63°
44°
18
63°
47°
19
63°
46°
20
64°
47°
21
67°
49°
22
63°
48°
23
63°
47°
24
62°
46°
25
65°
49°
26
60°
47°
27
61°
47°
28
63°
52°
29
62°
51°
30
61°
51°
31
63°
52°
1
68°
54°
2
68°
54°
3
67°
52°
4
66°
54°
5
69°
53°
6
68°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rio Dell
Rio Dell's May 2026 forecast shows daily high temperatures ranging from 60° to 69°, with overnight lows between 42° and 54°. The average high for May is 64° 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 Rio Dell. See also: June | July | August.
