S
M
T
W
T
F
S
27
72°
41°
28
75°
42°
29
79°
46°
30
65°
59°
1
66°
58°
2
66°
41°
3
70°
39°
4
71°
43°
5
69°
40°
6
75°
43°
7
77°
52°
8
71°
41°
9
69°
53°
10
80°
51°
11
76°
54°
12
80°
55°
13
65°
52°
14
60°
54°
15
66°
51°
16
61°
43°
17
57°
43°
18
59°
46°
19
63°
45°
20
61°
45°
21
60°
40°
22
61°
44°
23
53°
40°
24
60°
46°
25
63°
45°
26
60°
41°
27
61°
37°
28
51°
33°
29
51°
42°
30
56°
41°
31
61°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lake Geneva
Lake Geneva's October 2026 forecast shows daily high temperatures ranging from 51° to 80°, with overnight lows between 33° and 55°. The average high for October is 62° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Lake Geneva. See also: November | December | January.