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
64°
38°
7
69°
51°
8
77°
48°
9
72°
44°
10
72°
48°
11
68°
55°
12
68°
54°
13
68°
50°
14
67°
46°
15
63°
42°
16
67°
49°
17
65°
45°
18
64°
44°
19
63°
41°
20
60°
36°
21
57°
39°
22
57°
45°
23
58°
44°
24
60°
42°
25
59°
40°
26
56°
40°
27
55°
36°
28
55°
34°
29
56°
37°
30
62°
42°
31
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Princeton
Princeton's October 2026 forecast shows daily high temperatures ranging from 55° to 77°, with overnight lows between 34° and 55°. The average high for October is 63° with an average low of 44°. 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. See also: November | December | January.
