S
M
T
W
T
F
S
26
77°
54°
27
82°
50°
28
81°
59°
29
68°
52°
30
64°
43°
1
64°
41°
2
61°
39°
3
66°
36°
4
N/A
5
69°
56°
6
62°
47°
7
60°
38°
8
68°
49°
9
73°
51°
10
72°
54°
11
65°
42°
12
66°
43°
13
71°
54°
14
74°
57°
15
76°
58°
16
77°
57°
17
76°
58°
18
74°
53°
19
76°
57°
20
79°
55°
21
75°
50°
22
72°
49°
23
70°
48°
24
72°
51°
25
70°
52°
26
72°
50°
27
72°
51°
28
73°
52°
29
75°
52°
30
75°
57°
31
78°
60°
1
74°
57°
2
76°
55°
3
76°
56°
4
77°
57°
5
79°
61°
6
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Lebanon
Lebanon's May 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 38° and 62°. The average high for May is 73° with an average low of 53°. 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 Lebanon. See also: June | July | August.