S
M
T
W
T
F
S
28
83°
65°
29
84°
65°
30
79°
59°
1
83°
53°
2
76°
62°
3
81°
65°
4
85°
66°
5
86°
63°
6
83°
56°
7
77°
54°
8
76°
57°
9
77°
63°
10
79°
58°
11
82°
65°
12
84°
66°
13
80°
66°
14
81°
64°
15
84°
58°
16
77°
57°
17
78°
56°
18
77°
57°
19
75°
56°
20
77°
60°
21
78°
61°
22
76°
60°
23
80°
59°
24
79°
62°
25
82°
64°
26
83°
63°
27
84°
64°
28
83°
64°
29
87°
59°
30
79°
59°
31
84°
56°
1
Hist. Avg.
80°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Interlaken
Interlaken's July 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 53° and 66°. The average high for July is 81° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Interlaken. See also: August | September | October.