S
M
T
W
T
F
S
26
33°
20°
27
37°
25°
28
46°
27°
29
54°
29°
30
57°
34°
1
53°
32°
2
55°
31°
3
54°
32°
4
59°
35°
5
62°
39°
6
53°
41°
7
56°
41°
8
60°
40°
9
60°
40°
10
58°
39°
11
58°
41°
12
61°
41°
13
56°
39°
14
56°
35°
15
58°
38°
16
60°
38°
17
57°
35°
18
60°
40°
19
67°
43°
20
68°
44°
21
63°
43°
22
58°
36°
23
55°
35°
24
55°
33°
25
56°
35°
26
58°
36°
27
60°
42°
28
63°
41°
29
64°
42°
30
66°
45°
31
68°
44°
1
66°
40°
2
70°
39°
3
71°
37°
4
64°
42°
5
67°
47°
6
71°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Vilna
Vilna's May 2026 forecast shows daily high temperatures ranging from 33° to 71°, with overnight lows between 20° and 49°. The average high for May is 59° with an average low of 38°. 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 Vilna. See also: June | July | August.