S
M
T
W
T
F
S
27
78°
55°
28
N/A
29
84°
53°
30
90°
60°
1
90°
67°
2
75°
63°
3
75°
54°
4
78°
56°
5
77°
53°
6
78°
47°
7
82°
49°
8
84°
55°
9
87°
55°
10
66°
58°
11
81°
59°
12
87°
61°
13
89°
64°
14
82°
71°
15
86°
71°
16
74°
50°
17
58°
40°
18
66°
37°
19
71°
41°
20
73°
46°
21
74°
45°
22
75°
47°
23
74°
48°
24
75°
46°
25
76°
47°
26
75°
50°
27
75°
47°
28
77°
50°
29
78°
54°
30
81°
58°
31
74°
55°
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 74° to 81°, with overnight lows between 55° and 58°. The average high for October is 78° with an average low of 57°. 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.
