S
M
T
W
T
F
S
30
88°
72°
31
88°
72°
1
90°
69°
2
92°
67°
3
93°
69°
4
90°
69°
5
93°
69°
6
90°
66°
7
86°
65°
8
83°
60°
9
82°
59°
10
83°
55°
11
77°
54°
12
79°
54°
13
80°
55°
14
76°
51°
15
82°
58°
16
82°
57°
17
81°
58°
18
82°
59°
19
81°
56°
20
79°
57°
21
80°
58°
22
81°
57°
23
81°
57°
24
80°
56°
25
79°
55°
26
80°
53°
27
79°
54°
28
79°
54°
29
78°
53°
30
79°
54°
1
78°
54°
2
78°
53°
3
77°
52°
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 76° to 93°, with overnight lows between 51° and 69°. The average high for September is 82° with an average low of 58°. 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.
