S
M
T
W
T
F
S
26
58°
35°
27
73°
33°
28
64°
50°
29
56°
45°
30
50°
39°
1
50°
35°
2
46°
32°
3
53°
44°
4
64°
52°
5
65°
45°
6
51°
42°
7
50°
36°
8
49°
38°
9
52°
41°
10
56°
45°
11
58°
44°
12
60°
47°
13
57°
47°
14
59°
46°
15
62°
43°
16
61°
45°
17
62°
45°
18
63°
53°
19
67°
52°
20
68°
52°
21
71°
54°
22
69°
52°
23
64°
53°
24
71°
48°
25
63°
46°
26
65°
51°
27
65°
55°
28
66°
56°
29
71°
55°
30
67°
52°
31
68°
47°
1
65°
48°
2
65°
48°
3
66°
49°
4
66°
50°
5
67°
49°
6
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Interlaken
Interlaken's May 2026 forecast shows daily high temperatures ranging from 46° to 71°, with overnight lows between 32° and 56°. The average high for May is 62° with an average low of 47°. 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 Interlaken. See also: June | July | August.
