S
M
T
W
T
F
S
30
77°
64°
31
88°
70°
1
91°
70°
2
93°
68°
3
86°
64°
4
82°
61°
5
77°
57°
6
78°
58°
7
77°
61°
8
76°
60°
9
78°
59°
10
74°
54°
11
75°
52°
12
78°
56°
13
78°
57°
14
78°
57°
15
78°
56°
16
77°
56°
17
77°
55°
18
73°
55°
19
77°
56°
20
78°
57°
21
78°
56°
22
77°
56°
23
78°
55°
24
77°
55°
25
76°
54°
26
75°
53°
27
76°
54°
28
76°
53°
29
75°
52°
30
73°
51°
1
72°
51°
2
73°
52°
3
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Whitmore Lake
Whitmore Lake's September 2026 forecast shows daily high temperatures ranging from 72° to 93°, with overnight lows between 51° and 70°. The average high for September is 78° with an average low of 57°. 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 Whitmore Lake. See also: October | November | December.
