S
M
T
W
T
F
S
27
79°
48°
28
79°
48°
29
82°
52°
30
70°
61°
1
72°
62°
2
67°
51°
3
71°
45°
4
75°
50°
5
73°
47°
6
77°
50°
7
81°
56°
8
76°
50°
9
71°
52°
10
84°
56°
11
81°
52°
12
90°
62°
13
80°
67°
14
69°
61°
15
68°
59°
16
56°
41°
17
58°
34°
18
67°
40°
19
71°
41°
20
73°
41°
21
75°
42°
22
72°
46°
23
74°
48°
24
72°
46°
25
77°
49°
26
71°
48°
27
71°
49°
28
76°
55°
29
73°
52°
30
71°
55°
31
69°
54°
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 69° to 76°, with overnight lows between 48° and 55°. The average high for October is 72° with an average low of 52°. 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.
