S
M
T
W
T
F
S
30
88°
66°
31
N/A
1
91°
65°
2
84°
67°
3
87°
72°
4
90°
70°
5
87°
69°
6
87°
64°
7
80°
64°
8
81°
63°
9
83°
58°
10
80°
57°
11
75°
56°
12
77°
55°
13
75°
57°
14
74°
50°
15
78°
56°
16
77°
53°
17
76°
55°
18
78°
56°
19
77°
54°
20
76°
54°
21
77°
56°
22
78°
56°
23
78°
55°
24
77°
55°
25
76°
54°
26
76°
54°
27
76°
53°
28
76°
53°
29
75°
52°
30
75°
53°
1
74°
52°
2
75°
52°
3
74°
50°
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 74° to 91°, with overnight lows between 50° and 72°. The average high for September is 79° with an average low of 57°. 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.
