S
M
T
W
T
F
S
27
70°
51°
28
70°
62°
29
64°
56°
30
76°
54°
1
67°
36°
2
63°
49°
3
64°
42°
4
68°
37°
5
66°
51°
6
81°
44°
7
71°
40°
8
66°
42°
9
70°
58°
10
82°
61°
11
74°
48°
12
54°
42°
13
54°
41°
14
58°
44°
15
55°
41°
16
57°
38°
17
56°
41°
18
60°
41°
19
55°
33°
20
58°
39°
21
60°
40°
22
60°
40°
23
59°
38°
24
47°
36°
25
46°
36°
26
50°
35°
27
56°
39°
28
55°
41°
29
56°
40°
30
55°
37°
31
53°
31°
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 46° to 82°, with overnight lows between 31° and 61°. The average high for October is 60° with an average low of 41°. 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.
