S
M
T
W
T
F
S
26
75°
39°
27
77°
43°
28
79°
46°
29
79°
45°
30
64°
46°
1
64°
43°
2
72°
37°
3
77°
43°
4
72°
45°
5
64°
52°
6
70°
59°
7
73°
55°
8
73°
52°
9
77°
50°
10
63°
57°
11
75°
59°
12
73°
52°
13
68°
48°
14
72°
46°
15
64°
52°
16
59°
46°
17
72°
43°
18
72°
46°
19
70°
46°
20
77°
48°
21
77°
52°
22
77°
50°
23
77°
54°
24
81°
54°
25
86°
55°
26
88°
55°
27
91°
59°
28
86°
63°
29
84°
59°
30
88°
54°
31
88°
57°
1
82°
55°
2
82°
61°
3
79°
61°
4
84°
55°
5
79°
57°
6
82°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bolsena
Bolsena's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Bolsena. See also: June | July | August.