S
M
T
W
T
F
S
28
81°
60°
29
91°
68°
30
91°
78°
1
92°
74°
2
91°
70°
3
84°
67°
4
81°
65°
5
78°
60°
6
79°
60°
7
88°
68°
8
91°
70°
9
86°
68°
10
88°
67°
11
88°
68°
12
89°
68°
13
90°
66°
14
88°
67°
15
86°
63°
16
84°
66°
17
80°
60°
18
81°
66°
19
81°
67°
20
84°
67°
21
87°
66°
22
88°
68°
23
88°
67°
24
84°
67°
25
87°
66°
26
88°
68°
27
88°
68°
28
86°
67°
29
88°
68°
30
87°
67°
31
85°
66°
1
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lake Geneva
Lake Geneva's July 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 60° and 70°. The average high for July is 86° with an average low of 66°. 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 Lake Geneva. See also: August | September | October.
