S
M
T
W
T
F
S
30
81°
55°
31
81°
60°
1
80°
60°
2
79°
54°
3
79°
50°
4
73°
50°
5
72°
54°
6
73°
59°
7
79°
57°
8
79°
52°
9
73°
50°
10
72°
57°
11
73°
58°
12
79°
58°
13
79°
57°
14
78°
56°
15
78°
52°
16
77°
55°
17
70°
47°
18
73°
47°
19
68°
44°
20
67°
44°
21
65°
45°
22
66°
52°
23
67°
45°
24
68°
44°
25
66°
51°
26
69°
51°
27
68°
52°
28
73°
50°
29
72°
45°
30
71°
44°
1
65°
50°
2
70°
48°
3
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Novi
Novi's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 44° and 60°. The average high for September is 73° with an average low of 52°. 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 Novi. See also: October | November | December.