S
M
T
W
T
F
S
31
92°
72°
1
94°
71°
2
95°
71°
3
89°
69°
4
87°
71°
5
83°
70°
6
83°
72°
7
85°
73°
8
92°
72°
9
91°
71°
10
90°
71°
11
91°
72°
12
92°
72°
13
93°
73°
14
90°
70°
15
94°
74°
16
93°
74°
17
93°
73°
18
86°
73°
19
86°
72°
20
87°
74°
21
88°
74°
22
87°
73°
23
89°
70°
24
88°
72°
25
90°
74°
26
90°
74°
27
88°
73°
28
90°
74°
29
92°
75°
30
94°
74°
1
95°
75°
2
95°
75°
3
94°
76°
4
96°
76°
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 83° to 96°, with overnight lows between 69° and 76°. The average high for June is 90° with an average low of 73°. 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.