S
M
T
W
T
F
S
28
77°
56°
29
92°
67°
30
93°
78°
1
91°
67°
2
83°
67°
3
83°
65°
4
80°
66°
5
82°
63°
6
83°
58°
7
88°
59°
8
88°
66°
9
81°
66°
10
83°
62°
11
86°
59°
12
90°
60°
13
94°
65°
14
96°
63°
15
96°
68°
16
87°
64°
17
95°
66°
18
87°
63°
19
83°
57°
20
89°
58°
21
80°
54°
22
76°
47°
23
78°
54°
24
81°
61°
25
83°
67°
26
92°
70°
27
93°
64°
28
85°
60°
29
86°
60°
30
84°
61°
31
83°
60°
1
85°
60°
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 78° to 93°, with overnight lows between 54° and 70°. The average high for July is 85° with an average low of 62°. 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.
