S
M
T
W
T
F
S
30
76°
50°
31
64°
53°
1
75°
48°
2
74°
44°
3
72°
56°
4
77°
57°
5
57°
41°
6
62°
35°
7
53°
42°
8
67°
45°
9
72°
34°
10
61°
51°
11
51°
42°
12
49°
38°
13
63°
37°
14
51°
37°
15
52°
32°
16
49°
30°
17
54°
28°
18
58°
32°
19
65°
30°
20
74°
52°
21
76°
51°
22
74°
52°
23
64°
35°
24
63°
38°
25
56°
37°
26
60°
41°
27
54°
40°
28
61°
40°
29
54°
42°
30
43°
34°
1
42°
32°
2
61°
34°
3
52°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Key Lake
Key Lake's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Key Lake. See also: October | November | December.
