S
M
T
W
T
F
S
30
79°
54°
31
80°
58°
1
84°
55°
2
79°
54°
3
78°
60°
4
84°
61°
5
84°
61°
6
83°
59°
7
79°
53°
8
77°
53°
9
79°
59°
10
77°
59°
11
80°
58°
12
80°
58°
13
82°
53°
14
75°
50°
15
74°
50°
16
74°
49°
17
75°
51°
18
78°
56°
19
80°
56°
20
81°
57°
21
73°
54°
22
79°
53°
23
76°
54°
24
80°
47°
25
72°
46°
26
71°
52°
27
71°
46°
28
Hist. Avg.
74°
52°
29
Hist. Avg.
74°
51°
30
Hist. Avg.
74°
51°
1
Hist. Avg.
73°
50°
2
Hist. Avg.
73°
50°
3
Hist. Avg.
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lebanon
Lebanon's September 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 46° and 61°. The average high for September is 78° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Lebanon. See also: October | November | December.
