S
M
T
W
T
F
S
31
75°
52°
1
72°
57°
2
68°
49°
3
71°
46°
4
76°
50°
5
77°
58°
6
78°
61°
7
79°
61°
8
79°
62°
9
74°
66°
10
80°
65°
11
84°
67°
12
85°
66°
13
78°
63°
14
80°
60°
15
67°
54°
16
70°
50°
17
77°
56°
18
77°
64°
19
75°
56°
20
78°
58°
21
84°
66°
22
76°
59°
23
74°
56°
24
76°
57°
25
78°
59°
26
79°
60°
27
78°
62°
28
80°
63°
29
81°
62°
30
79°
63°
1
81°
60°
2
77°
59°
3
81°
63°
4
80°
63°
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 74° to 84°, with overnight lows between 56° and 66°. The average high for June is 78° with an average low of 61°. 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.