S
M
T
W
T
F
S
30
95°
72°
31
90°
72°
1
92°
73°
2
88°
72°
3
88°
73°
4
91°
73°
5
88°
73°
6
91°
72°
7
86°
72°
8
88°
72°
9
86°
73°
10
90°
73°
11
90°
72°
12
88°
70°
13
88°
72°
14
91°
73°
15
90°
72°
16
88°
70°
17
88°
68°
18
88°
68°
19
88°
68°
20
88°
70°
21
86°
70°
22
90°
70°
23
89°
70°
24
86°
62°
25
84°
56°
26
84°
54°
27
83°
59°
28
85°
61°
29
84°
64°
30
83°
66°
1
80°
67°
2
84°
64°
3
85°
68°
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 80° to 90°, with overnight lows between 54° and 70°. The average high for September is 85° with an average low of 63°. 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.
