S
M
T
W
T
F
S
27
70°
60°
28
76°
61°
29
77°
58°
30
N/A
1
71°
48°
2
68°
46°
3
71°
49°
4
72°
44°
5
66°
46°
6
71°
52°
7
75°
51°
8
74°
52°
9
69°
48°
10
71°
49°
11
69°
46°
12
68°
43°
13
67°
47°
14
66°
43°
15
64°
49°
16
70°
48°
17
70°
47°
18
69°
43°
19
64°
41°
20
57°
37°
21
56°
35°
22
61°
46°
23
68°
48°
24
68°
47°
25
66°
42°
26
55°
38°
27
58°
44°
28
66°
41°
29
58°
37°
30
59°
44°
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 75°, with overnight lows between 35° and 52°. The average high for October is 66° with an average low of 45°. 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.
