S
M
T
W
T
F
S
30
80°
58°
31
81°
58°
1
82°
57°
2
82°
52°
3
78°
56°
4
81°
56°
5
78°
56°
6
77°
56°
7
74°
55°
8
74°
49°
9
75°
47°
10
72°
54°
11
74°
55°
12
79°
54°
13
78°
55°
14
77°
53°
15
77°
54°
16
70°
47°
17
71°
52°
18
Hist. Avg.
74°
53°
19
Hist. Avg.
74°
53°
20
Hist. Avg.
74°
52°
21
Hist. Avg.
73°
52°
22
Hist. Avg.
73°
52°
23
Hist. Avg.
72°
51°
24
Hist. Avg.
72°
51°
25
Hist. Avg.
72°
50°
26
Hist. Avg.
71°
50°
27
Hist. Avg.
71°
50°
28
Hist. Avg.
70°
49°
29
Hist. Avg.
70°
49°
30
Hist. Avg.
70°
48°
1
Hist. Avg.
69°
48°
2
Hist. Avg.
69°
48°
3
Hist. Avg.
68°
48°
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 70° to 82°, with overnight lows between 47° and 58°. The average high for September is 77° 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.