S
M
T
W
T
F
S
30
88°
61°
31
89°
54°
1
85°
58°
2
76°
64°
3
86°
62°
4
87°
53°
5
86°
52°
6
76°
59°
7
81°
61°
8
85°
58°
9
84°
55°
10
76°
56°
11
74°
54°
12
75°
50°
13
73°
50°
14
74°
55°
15
75°
57°
16
81°
58°
17
83°
57°
18
83°
52°
19
79°
53°
20
75°
54°
21
80°
55°
22
77°
48°
23
80°
44°
24
68°
45°
25
71°
49°
26
68°
42°
27
80°
53°
28
80°
52°
29
Hist. Avg.
72°
44°
30
Hist. Avg.
71°
44°
1
Hist. Avg.
71°
43°
2
Hist. Avg.
70°
43°
3
Hist. Avg.
70°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lexington
Lexington's September 2026 forecast shows daily high temperatures ranging from 68° to 89°, with overnight lows between 42° and 64°. The average high for September is 79° with an average low of 54°. 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.