S
M
T
W
T
F
S
26
66°
37°
27
57°
45°
28
57°
39°
29
46°
31°
30
42°
20°
1
43°
22°
2
58°
20°
3
69°
38°
4
66°
30°
5
47°
29°
6
45°
29°
7
50°
28°
8
58°
33°
9
57°
35°
10
56°
33°
11
59°
39°
12
60°
44°
13
61°
40°
14
61°
42°
15
64°
45°
16
66°
43°
17
62°
49°
18
66°
46°
19
68°
47°
20
67°
46°
21
65°
37°
22
60°
37°
23
62°
41°
24
61°
40°
25
62°
39°
26
63°
40°
27
61°
40°
28
62°
41°
29
65°
50°
30
65°
50°
31
66°
49°
1
70°
50°
2
74°
52°
3
76°
52°
4
76°
53°
5
75°
54°
6
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rhinelander
Rhinelander's May 2026 forecast shows daily high temperatures ranging from 45° to 76°, with overnight lows between 28° and 54°. The average high for May is 63° with an average low of 42°. 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 Rhinelander. See also: June | July | August.
