S
M
T
W
T
F
S
27
65°
57°
28
67°
59°
29
73°
57°
30
76°
56°
1
80°
61°
2
85°
56°
3
73°
53°
4
63°
53°
5
70°
45°
6
62°
37°
7
66°
44°
8
70°
46°
9
72°
49°
10
69°
44°
11
65°
44°
12
66°
46°
13
65°
45°
14
64°
43°
15
59°
38°
16
61°
40°
17
68°
47°
18
68°
47°
19
65°
46°
20
66°
41°
21
60°
38°
22
57°
40°
23
58°
40°
24
64°
45°
25
66°
45°
26
66°
38°
27
55°
36°
28
56°
35°
29
58°
41°
30
58°
42°
31
59°
40°
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 85°, with overnight lows between 35° and 61°. The average high for October is 65° 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.
