S
M
T
W
T
F
S
28
94°
75°
29
95°
76°
30
94°
76°
1
95°
75°
2
96°
76°
3
95°
76°
4
94°
75°
5
93°
75°
6
93°
74°
7
95°
76°
8
96°
77°
9
97°
77°
10
98°
76°
11
98°
78°
12
97°
77°
13
98°
77°
14
98°
76°
15
97°
77°
16
96°
76°
17
96°
75°
18
97°
76°
19
97°
75°
20
96°
76°
21
98°
77°
22
97°
75°
23
98°
75°
24
98°
74°
25
97°
77°
26
98°
77°
27
99°
74°
28
94°
77°
29
97°
78°
30
99°
78°
31
99°
77°
1
98°
74°
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 93° to 99°, with overnight lows between 74° 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.
