S
M
T
W
T
F
S
27
65°
57°
28
67°
59°
29
73°
57°
30
76°
56°
1
79°
61°
2
87°
62°
3
72°
56°
4
61°
56°
5
71°
48°
6
62°
42°
7
68°
38°
8
75°
50°
9
73°
45°
10
73°
46°
11
61°
55°
12
72°
54°
13
77°
52°
14
81°
60°
15
67°
50°
16
73°
49°
17
55°
34°
18
58°
37°
19
64°
46°
20
70°
46°
21
65°
44°
22
58°
45°
23
65°
44°
24
64°
45°
25
62°
44°
26
62°
42°
27
63°
45°
28
62°
43°
29
61°
38°
30
61°
39°
31
57°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Princeton Junction
Princeton Junction's October 2026 forecast shows daily high temperatures ranging from 55° to 73°, with overnight lows between 34° and 49°. The average high for October is 63° with an average low of 43°. 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 Princeton Junction. See also: November | December | January.