S
M
T
W
T
F
S
26
70°
41°
27
72°
39°
28
68°
45°
29
68°
52°
30
64°
45°
1
72°
39°
2
77°
43°
3
77°
48°
4
72°
48°
5
64°
46°
6
59°
46°
7
63°
45°
8
70°
45°
9
73°
48°
10
72°
48°
11
61°
45°
12
55°
37°
13
61°
37°
14
54°
41°
15
52°
39°
16
52°
39°
17
63°
37°
18
57°
41°
19
64°
41°
20
68°
54°
21
73°
48°
22
79°
48°
23
82°
50°
24
N/A
25
89°
59°
26
89°
60°
27
87°
59°
28
83°
59°
29
87°
58°
30
87°
60°
31
78°
58°
1
77°
57°
2
76°
58°
3
74°
58°
4
75°
57°
5
74°
56°
6
60°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Rapperswil
Rapperswil's May 2026 forecast shows daily high temperatures ranging from 60° to 89°, with overnight lows between 50° and 60°. The average high for May is 80° with an average low of 58°. 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 Rapperswil. See also: June | July | August.
