S
M
T
W
T
F
S
30
69°
50°
31
72°
53°
1
68°
54°
2
68°
49°
3
69°
49°
4
72°
53°
5
68°
49°
6
67°
48°
7
67°
48°
8
71°
49°
9
75°
52°
10
76°
56°
11
75°
54°
12
76°
56°
13
76°
55°
14
71°
47°
15
70°
48°
16
69°
54°
17
74°
55°
18
75°
50°
19
74°
54°
20
72°
52°
21
66°
54°
22
72°
55°
23
73°
52°
24
71°
53°
25
71°
56°
26
72°
56°
27
72°
54°
28
62°
51°
29
61°
50°
30
61°
51°
1
60°
48°
2
59°
45°
3
57°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake City
Lake City's September 2026 forecast shows daily high temperatures ranging from 57° to 76°, with overnight lows between 45° and 56°. The average high for September is 69° with an average low of 52°. 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 Lake City. See also: October | November | December.
