S
M
T
W
T
F
S
26
53°
41°
27
54°
39°
28
56°
42°
29
54°
39°
30
54°
41°
1
59°
41°
2
57°
38°
3
56°
42°
4
63°
48°
5
67°
49°
6
64°
48°
7
68°
50°
8
69°
51°
9
70°
50°
10
69°
48°
11
58°
46°
12
59°
47°
13
61°
49°
14
60°
49°
15
61°
51°
16
65°
52°
17
63°
51°
18
65°
43°
19
65°
42°
20
62°
42°
21
63°
43°
22
62°
42°
23
63°
45°
24
64°
50°
25
66°
47°
26
67°
49°
27
71°
46°
28
66°
51°
29
66°
53°
30
76°
47°
31
69°
52°
1
67°
53°
2
69°
48°
3
68°
56°
4
73°
51°
5
76°
50°
6
69°
50°
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 53° to 76°, with overnight lows between 38° and 56°. The average high for May is 64° with an average low of 47°. 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.