S
M
T
W
T
F
S
26
72°
52°
27
75°
51°
28
78°
53°
29
79°
56°
30
80°
55°
31
80°
55°
1
79°
57°
2
81°
56°
3
80°
52°
4
74°
54°
5
79°
54°
6
76°
57°
7
79°
56°
8
75°
51°
9
74°
52°
10
73°
55°
11
75°
59°
12
78°
58°
13
75°
51°
14
72°
49°
15
72°
49°
16
73°
56°
17
78°
52°
18
72°
57°
19
76°
54°
20
71°
50°
21
71°
50°
22
72°
51°
23
71°
57°
24
70°
56°
25
76°
57°
26
77°
56°
27
73°
55°
28
70°
48°
29
69°
50°
30
75°
50°
31
75°
53°
1
76°
55°
2
76°
52°
3
75°
56°
4
75°
54°
5
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Interlaken
Interlaken's August 2026 forecast shows daily high temperatures ranging from 69° to 81°, with overnight lows between 48° and 59°. The average high for August is 75° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Interlaken. See also: September | October | November.
