S
M
T
W
T
F
S
28
91°
73°
29
92°
73°
30
93°
73°
1
93°
73°
2
95°
72°
3
90°
72°
4
92°
73°
5
88°
69°
6
87°
68°
7
88°
68°
8
89°
68°
9
88°
70°
10
89°
69°
11
88°
69°
12
86°
68°
13
89°
69°
14
90°
68°
15
88°
66°
16
85°
64°
17
83°
63°
18
83°
64°
19
86°
69°
20
89°
70°
21
90°
70°
22
89°
69°
23
90°
70°
24
91°
70°
25
91°
69°
26
90°
71°
27
92°
71°
28
91°
70°
29
91°
70°
30
92°
71°
31
91°
70°
1
88°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Princeton
Princeton's July 2026 forecast shows daily high temperatures ranging from 83° to 95°, with overnight lows between 63° and 73°. The average high for July is 89° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Princeton. See also: August | September | October.
