S
M
T
W
T
F
S
27
69°
51°
28
71°
50°
29
71°
41°
30
65°
42°
1
63°
48°
2
64°
48°
3
68°
47°
4
70°
49°
5
70°
49°
6
68°
50°
7
69°
49°
8
70°
45°
9
69°
43°
10
64°
41°
11
61°
45°
12
60°
45°
13
58°
44°
14
58°
44°
15
62°
43°
16
64°
45°
17
66°
40°
18
66°
35°
19
56°
35°
20
56°
34°
21
55°
36°
22
54°
42°
23
59°
40°
24
61°
35°
25
55°
34°
26
53°
33°
27
52°
40°
28
57°
33°
29
59°
31°
30
59°
30°
31
63°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hackettstown
Hackettstown's October 2026 forecast shows daily high temperatures ranging from 52° to 71°, with overnight lows between 30° and 51°. The average high for October is 62° with an average low of 42°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Hackettstown. See also: November | December | January.