S
M
T
W
T
F
S
31
89°
67°
1
89°
71°
2
88°
71°
3
85°
70°
4
84°
67°
5
85°
69°
6
88°
71°
7
85°
72°
8
88°
72°
9
89°
71°
10
89°
72°
11
85°
73°
12
90°
72°
13
84°
71°
14
85°
72°
15
86°
73°
16
89°
72°
17
91°
73°
18
90°
72°
19
86°
73°
20
87°
73°
21
86°
74°
22
86°
74°
23
91°
73°
24
92°
75°
25
91°
74°
26
91°
74°
27
90°
75°
28
91°
74°
29
94°
74°
30
94°
75°
1
93°
73°
2
94°
70°
3
90°
69°
4
91°
70°
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 84° to 94°, with overnight lows between 67° and 75°. The average high for June is 89° with an average low of 72°. 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.