S
M
T
W
T
F
S
31
79°
52°
1
83°
61°
2
76°
50°
3
82°
46°
4
87°
52°
5
91°
62°
6
91°
65°
7
94°
67°
8
93°
62°
9
86°
68°
10
89°
70°
11
92°
71°
12
98°
73°
13
93°
70°
14
94°
69°
15
90°
71°
16
89°
70°
17
89°
68°
18
86°
67°
19
89°
69°
20
91°
70°
21
92°
69°
22
91°
70°
23
90°
71°
24
92°
71°
25
92°
70°
26
91°
71°
27
92°
72°
28
93°
72°
29
92°
71°
30
92°
72°
1
89°
72°
2
93°
73°
3
92°
72°
4
93°
73°
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 86° to 98°, with overnight lows between 62° and 73°. The average high for June is 91° with an average low of 70°. 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.