S
M
T
W
T
F
S
30
82°
55°
31
81°
58°
1
81°
55°
2
80°
57°
3
79°
58°
4
80°
57°
5
79°
57°
6
78°
56°
7
78°
56°
8
77°
55°
9
77°
55°
10
76°
54°
11
79°
54°
12
79°
53°
13
78°
54°
14
78°
54°
15
75°
55°
16
76°
52°
17
76°
51°
18
68°
50°
19
70°
42°
20
66°
43°
21
66°
51°
22
67°
43°
23
66°
42°
24
65°
44°
25
66°
47°
26
70°
48°
27
65°
46°
28
64°
42°
29
63°
41°
30
64°
41°
1
67°
44°
2
67°
48°
3
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Lebanon
West Lebanon's September 2026 forecast shows daily high temperatures ranging from 63° to 82°, with overnight lows between 41° and 58°. The average high for September is 73° with an average low of 50°. 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 West Lebanon. See also: October | November | December.
