S
M
T
W
T
F
S
30
95°
69°
31
95°
70°
1
99°
68°
2
97°
70°
3
99°
72°
4
100°
72°
5
99°
70°
6
97°
70°
7
90°
68°
8
93°
72°
9
93°
72°
10
95°
68°
11
94°
72°
12
84°
68°
13
92°
65°
14
91°
67°
15
94°
70°
16
92°
68°
17
87°
68°
18
80°
57°
19
80°
56°
20
83°
59°
21
84°
60°
22
82°
61°
23
78°
47°
24
86°
60°
25
86°
59°
26
85°
58°
27
85°
58°
28
84°
57°
29
85°
58°
30
81°
58°
1
76°
56°
2
80°
55°
3
82°
56°
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 76° to 95°, with overnight lows between 47° and 72°. The average high for September is 85° with an average low of 61°. 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.
