S
M
T
W
T
F
S
30
82°
62°
31
83°
61°
1
82°
60°
2
83°
62°
3
83°
62°
4
82°
61°
5
83°
61°
6
82°
60°
7
83°
58°
8
76°
56°
9
78°
57°
10
79°
57°
11
81°
56°
12
75°
55°
13
68°
48°
14
66°
49°
15
66°
54°
16
68°
53°
17
67°
47°
18
71°
49°
19
76°
53°
20
76°
53°
21
75°
52°
22
75°
45°
23
74°
45°
24
71°
52°
25
70°
52°
26
72°
44°
27
74°
39°
28
65°
42°
29
68°
48°
30
67°
46°
1
64°
47°
2
62°
50°
3
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Lillian
Lake Lillian's September 2026 forecast shows daily high temperatures ranging from 62° to 83°, with overnight lows between 39° and 62°. The average high for September is 74° with an average low of 53°. 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 Lillian. See also: October | November | December.
