S
M
T
W
T
F
S
30
77°
51°
31
72°
52°
1
69°
49°
2
68°
51°
3
70°
52°
4
77°
50°
5
76°
57°
6
70°
51°
7
67°
49°
8
66°
47°
9
67°
48°
10
66°
48°
11
67°
51°
12
73°
53°
13
75°
53°
14
76°
55°
15
76°
55°
16
73°
56°
17
75°
55°
18
68°
54°
19
73°
55°
20
74°
56°
21
75°
57°
22
74°
54°
23
65°
55°
24
63°
46°
25
63°
46°
26
64°
52°
27
61°
46°
28
62°
44°
29
62°
45°
30
63°
46°
1
62°
51°
2
69°
52°
3
70°
52°
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 61° to 77°, with overnight lows between 44° and 57°. The average high for September is 69° with an average low of 51°. 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.
