S
M
T
W
T
F
S
26
59°
37°
27
61°
43°
28
59°
43°
29
57°
41°
30
59°
37°
1
64°
43°
2
70°
52°
3
66°
52°
4
64°
50°
5
59°
50°
6
52°
43°
7
52°
41°
8
55°
41°
9
61°
41°
10
64°
48°
11
52°
34°
12
45°
34°
13
48°
37°
14
48°
37°
15
50°
37°
16
50°
37°
17
54°
37°
18
54°
45°
19
54°
43°
20
57°
50°
21
64°
52°
22
72°
54°
23
77°
63°
24
77°
61°
25
79°
57°
26
86°
61°
27
80°
52°
28
76°
56°
29
84°
63°
30
82°
60°
31
76°
54°
1
73°
57°
2
76°
55°
3
69°
53°
4
65°
51°
5
68°
52°
6
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rhein
Rhein's May 2026 forecast shows daily high temperatures ranging from 65° to 86°, with overnight lows between 51° and 63°. The average high for May is 75° with an average low of 56°. 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 Rhein. See also: June | July | August.
