S
M
T
W
T
F
S
30
76°
56°
31
80°
60°
1
82°
59°
2
82°
59°
3
81°
52°
4
80°
50°
5
74°
51°
6
74°
56°
7
77°
57°
8
79°
56°
9
80°
57°
10
75°
56°
11
79°
55°
12
79°
56°
13
78°
56°
14
78°
55°
15
79°
56°
16
79°
52°
17
77°
55°
18
76°
49°
19
76°
47°
20
71°
45°
21
68°
44°
22
68°
51°
23
69°
48°
24
72°
44°
25
67°
43°
26
67°
43°
27
69°
45°
28
73°
49°
29
72°
48°
30
73°
47°
1
66°
48°
2
65°
41°
3
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lewisburg
Lewisburg's September 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 41° and 60°. The average high for September is 74° with an average low of 51°. 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 Lewisburg. See also: October | November | December.
