S
M
T
W
T
F
S
26
54°
36°
27
54°
37°
28
55°
38°
29
55°
39°
30
54°
42°
1
54°
42°
2
56°
40°
3
56°
42°
4
55°
42°
5
57°
41°
6
55°
40°
7
53°
41°
8
53°
41°
9
52°
38°
10
52°
37°
11
51°
35°
12
51°
35°
13
52°
40°
14
52°
41°
15
53°
40°
16
52°
37°
17
52°
36°
18
53°
39°
19
51°
41°
20
55°
40°
21
53°
40°
22
55°
38°
23
53°
35°
24
52°
38°
25
53°
39°
26
55°
36°
27
55°
38°
28
54°
35°
29
51°
34°
30
50°
33°
31
50°
38°
1
51°
38°
2
52°
37°
3
54°
34°
4
52°
33°
5
51°
32°
6
50°
33°
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 50° to 57°, with overnight lows between 32° and 42°. The average high for May is 53° with an average low of 38°. 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.
