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
95°
76°
8
97°
79°
9
98°
77°
10
96°
76°
11
95°
76°
12
91°
73°
13
93°
77°
14
93°
76°
15
99°
74°
16
99°
76°
17
101°
77°
18
100°
78°
19
101°
77°
20
95°
74°
21
99°
77°
22
98°
78°
23
99°
78°
24
98°
77°
25
99°
77°
26
98°
76°
27
99°
77°
28
98°
77°
29
98°
76°
30
97°
77°
31
98°
77°
1
97°
78°
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 91° to 101°, with overnight lows between 73° and 79°. The average high for July is 97° with an average low of 77°. 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.
