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
72°
62°
19
71°
56°
20
77°
57°
21
80°
65°
22
76°
61°
23
73°
54°
24
80°
57°
25
80°
59°
26
78°
60°
27
76°
59°
28
78°
61°
29
81°
62°
30
82°
63°
1
81°
62°
2
83°
63°
3
81°
60°
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 73° to 83°, with overnight lows between 54° and 65°. The average high for June is 79° 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.