S
M
T
W
T
F
S
30
68°
47°
31
67°
49°
1
68°
48°
2
67°
52°
3
70°
48°
4
68°
47°
5
68°
50°
6
67°
47°
7
65°
49°
8
69°
53°
9
70°
48°
10
69°
46°
11
68°
52°
12
70°
52°
13
68°
51°
14
65°
52°
15
69°
54°
16
70°
54°
17
70°
52°
18
69°
47°
19
67°
42°
20
60°
42°
21
57°
47°
22
59°
42°
23
60°
41°
24
59°
44°
25
59°
41°
26
58°
38°
27
56°
41°
28
57°
43°
29
55°
40°
30
55°
36°
1
Hist. Avg.
59°
42°
2
Hist. Avg.
58°
41°
3
Hist. Avg.
58°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Houghton
Houghton's September 2026 forecast shows daily high temperatures ranging from 55° to 70°, with overnight lows between 36° and 54°. The average high for September is 65° 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 Houghton. See also: October | November | December.