S
M
T
W
T
F
S
26
67°
35°
27
58°
49°
28
57°
49°
29
64°
43°
30
71°
42°
1
70°
45°
2
73°
50°
3
76°
45°
4
76°
47°
5
62°
53°
6
58°
52°
7
63°
52°
8
58°
47°
9
67°
47°
10
64°
51°
11
68°
49°
12
77°
44°
13
60°
53°
14
59°
49°
15
52°
46°
16
56°
46°
17
63°
46°
18
64°
49°
19
64°
45°
20
68°
50°
21
73°
53°
22
63°
51°
23
64°
51°
24
64°
51°
25
65°
53°
26
65°
50°
27
77°
58°
28
61°
52°
29
61°
51°
30
62°
50°
31
66°
53°
1
67°
54°
2
62°
53°
3
62°
50°
4
61°
51°
5
61°
52°
6
62°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Geneva
Geneva's May 2026 forecast shows daily high temperatures ranging from 52° to 77°, with overnight lows between 45° and 58°. The average high for May is 63° with an average low of 51°. 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 Geneva. See also: June | July | August.