S
M
T
W
T
F
S
30
78°
65°
31
85°
69°
1
84°
73°
2
94°
70°
3
89°
68°
4
82°
65°
5
78°
59°
6
80°
58°
7
80°
60°
8
76°
61°
9
82°
62°
10
79°
58°
11
77°
52°
12
75°
53°
13
74°
56°
14
76°
51°
15
77°
56°
16
78°
56°
17
77°
55°
18
76°
55°
19
78°
56°
20
78°
57°
21
77°
56°
22
78°
56°
23
78°
55°
24
77°
55°
25
77°
54°
26
76°
52°
27
77°
53°
28
76°
53°
29
75°
52°
30
74°
51°
1
73°
51°
2
74°
50°
3
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hillsdale
Hillsdale's September 2026 forecast shows daily high temperatures ranging from 73° to 94°, with overnight lows between 50° and 70°. The average high for September is 78° with an average low of 56°. 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 Hillsdale. See also: October | November | December.
