S
M
T
W
T
F
S
30
85°
65°
31
84°
69°
1
92°
67°
2
89°
70°
3
78°
65°
4
77°
63°
5
78°
54°
6
77°
52°
7
79°
58°
8
76°
66°
9
83°
59°
10
76°
52°
11
71°
50°
12
77°
51°
13
73°
51°
14
74°
52°
15
73°
50°
16
77°
51°
17
76°
47°
18
71°
49°
19
75°
53°
20
75°
53°
21
74°
52°
22
71°
51°
23
70°
47°
24
71°
50°
25
72°
50°
26
73°
49°
27
63°
46°
28
62°
43°
29
61°
44°
30
60°
42°
1
59°
41°
2
61°
44°
3
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake
Lake's September 2026 forecast shows daily high temperatures ranging from 59° to 83°, with overnight lows between 41° and 66°. The average high for September is 72° with an average low of 51°. 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. See also: October | November | December.
