S
M
T
W
T
F
S
26
77°
45°
27
77°
55°
28
77°
50°
29
68°
55°
30
66°
48°
1
72°
39°
2
73°
43°
3
75°
43°
4
75°
46°
5
64°
50°
6
64°
57°
7
68°
55°
8
73°
54°
9
75°
50°
10
72°
50°
11
66°
52°
12
64°
45°
13
64°
45°
14
59°
45°
15
59°
48°
16
66°
48°
17
70°
45°
18
72°
48°
19
75°
52°
20
79°
50°
21
82°
54°
22
81°
57°
23
84°
59°
24
86°
61°
25
88°
64°
26
90°
64°
27
90°
64°
28
88°
63°
29
84°
66°
30
84°
59°
31
84°
63°
1
77°
63°
2
79°
59°
3
70°
55°
4
77°
54°
5
77°
61°
6
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monfalcone
Monfalcone'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 Monfalcone. See also: June | July | August.