S
M
T
W
T
F
S
30
71°
61°
31
83°
66°
1
88°
62°
2
82°
63°
3
76°
56°
4
75°
64°
5
78°
52°
6
77°
46°
7
76°
46°
8
74°
52°
9
78°
61°
10
74°
45°
11
74°
41°
12
81°
55°
13
67°
50°
14
66°
38°
15
68°
53°
16
70°
49°
17
69°
50°
18
65°
48°
19
62°
53°
20
68°
45°
21
59°
42°
22
62°
42°
23
63°
47°
24
66°
43°
25
69°
46°
26
70°
44°
27
70°
44°
28
69°
49°
29
68°
47°
30
64°
47°
1
66°
48°
2
67°
49°
3
59°
47°
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 59° to 70°, with overnight lows between 42° and 53°. The average high for September is 65° with an average low of 46°. 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.