S
M
T
W
T
F
S
30
90°
66°
31
81°
68°
1
89°
68°
2
90°
67°
3
90°
69°
4
91°
65°
5
90°
60°
6
83°
56°
7
81°
56°
8
82°
64°
9
83°
61°
10
82°
56°
11
78°
54°
12
76°
57°
13
78°
62°
14
77°
53°
15
85°
52°
16
77°
51°
17
74°
51°
18
74°
52°
19
75°
50°
20
72°
49°
21
73°
50°
22
74°
50°
23
74°
51°
24
76°
54°
25
78°
56°
26
80°
53°
27
81°
57°
28
74°
51°
29
80°
47°
30
79°
51°
1
73°
50°
2
71°
46°
3
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lexington
Lexington's September 2026 forecast shows daily high temperatures ranging from 70° to 91°, with overnight lows between 46° and 69°. The average high for September is 79° with an average low of 56°. 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 Lexington. See also: October | November | December.
