S
M
T
W
T
F
S
30
79°
56°
31
80°
56°
1
79°
55°
2
74°
53°
3
74°
55°
4
78°
54°
5
78°
54°
6
79°
55°
7
79°
55°
8
78°
54°
9
77°
54°
10
72°
53°
11
77°
54°
12
76°
54°
13
76°
53°
14
66°
40°
15
66°
43°
16
67°
47°
17
69°
48°
18
65°
40°
19
68°
47°
20
73°
50°
21
73°
50°
22
72°
43°
23
71°
39°
24
65°
42°
25
70°
45°
26
71°
48°
27
67°
43°
28
66°
37°
29
60°
39°
30
64°
43°
1
62°
46°
2
62°
47°
3
67°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Houghton Lake
Houghton Lake's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 37° and 56°. The average high for September is 71° with an average low of 49°. 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 Houghton Lake. See also: October | November | December.