S
M
T
W
T
F
S
30
77°
57°
31
78°
56°
1
75°
59°
2
75°
59°
3
82°
58°
4
82°
59°
5
76°
53°
6
76°
51°
7
80°
54°
8
81°
53°
9
76°
50°
10
77°
55°
11
75°
48°
12
76°
48°
13
78°
56°
14
79°
49°
15
73°
48°
16
70°
50°
17
71°
47°
18
72°
52°
19
77°
45°
20
74°
48°
21
76°
52°
22
77°
52°
23
76°
48°
24
76°
45°
25
75°
46°
26
75°
52°
27
74°
52°
28
74°
51°
29
75°
49°
30
71°
49°
1
73°
50°
2
74°
49°
3
74°
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 70° to 82°, with overnight lows between 45° and 59°. The average high for September is 76° 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.
