S
M
T
W
T
F
S
27
73°
51°
28
73°
51°
29
72°
43°
30
69°
42°
1
66°
42°
2
66°
45°
3
71°
48°
4
71°
48°
5
63°
47°
6
66°
50°
7
69°
49°
8
70°
46°
9
71°
45°
10
68°
43°
11
61°
43°
12
62°
45°
13
60°
44°
14
59°
42°
15
63°
44°
16
65°
45°
17
66°
42°
18
66°
38°
19
61°
39°
20
57°
33°
21
57°
34°
22
54°
42°
23
56°
41°
24
62°
36°
25
57°
33°
26
54°
32°
27
53°
39°
28
54°
35°
29
60°
31°
30
60°
31°
31
49°
35°
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 49° to 73°, with overnight lows between 31° and 51°. The average high for October is 63° 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 Princeton. See also: November | December | January.
