S
M
T
W
T
F
S
28
95°
79°
29
96°
81°
30
93°
77°
1
94°
77°
2
94°
75°
3
95°
76°
4
96°
77°
5
93°
71°
6
96°
72°
7
97°
73°
8
97°
75°
9
99°
77°
10
97°
76°
11
98°
78°
12
95°
74°
13
87°
73°
14
89°
73°
15
89°
73°
16
93°
74°
17
95°
76°
18
96°
76°
19
100°
77°
20
100°
77°
21
99°
76°
22
98°
78°
23
96°
76°
24
98°
74°
25
97°
78°
26
99°
77°
27
99°
78°
28
98°
78°
29
99°
77°
30
99°
78°
31
98°
78°
1
99°
77°
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 87° to 100°, with overnight lows between 73° and 78°. The average high for July is 96° with an average low of 76°. 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.
