S
M
T
W
T
F
S
31
71°
57°
1
76°
56°
2
72°
52°
3
73°
56°
4
77°
58°
5
76°
55°
6
77°
57°
7
80°
60°
8
81°
61°
9
82°
61°
10
82°
60°
11
83°
61°
12
81°
61°
13
84°
60°
14
81°
58°
15
84°
62°
16
85°
63°
17
84°
63°
18
85°
64°
19
86°
62°
20
85°
56°
21
83°
59°
22
80°
63°
23
81°
57°
24
83°
58°
25
82°
59°
26
79°
60°
27
80°
59°
28
79°
62°
29
80°
60°
30
82°
62°
1
87°
60°
2
87°
66°
3
85°
60°
4
86°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Princeton
Princeton's June 2026 forecast shows daily high temperatures ranging from 71° to 87°, with overnight lows between 52° and 66°. The average high for June is 81° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Princeton. See also: July | August | September.