S
M
T
W
T
F
S
30
78°
56°
31
78°
56°
1
77°
52°
2
70°
48°
3
69°
48°
4
69°
49°
5
70°
47°
6
74°
54°
7
77°
55°
8
76°
55°
9
73°
54°
10
76°
55°
11
77°
54°
12
76°
54°
13
77°
55°
14
77°
45°
15
68°
45°
16
65°
44°
17
68°
45°
18
66°
43°
19
67°
42°
20
66°
43°
21
72°
45°
22
73°
49°
23
73°
41°
24
72°
40°
25
66°
40°
26
65°
42°
27
68°
47°
28
70°
47°
29
70°
38°
30
64°
38°
1
62°
44°
2
63°
44°
3
67°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Highland Lake
Highland Lake's September 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 38° and 56°. The average high for September is 71° with an average low of 47°. 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 Highland Lake. See also: October | November | December.
