S
M
T
W
T
F
S
28
76°
54°
29
84°
51°
30
86°
55°
1
81°
58°
2
94°
58°
3
94°
64°
4
87°
56°
5
83°
52°
6
81°
49°
7
80°
49°
8
81°
52°
9
89°
52°
10
81°
55°
11
79°
52°
12
83°
54°
13
86°
60°
14
88°
65°
15
84°
62°
16
81°
61°
17
79°
60°
18
80°
59°
19
74°
58°
20
77°
60°
21
78°
59°
22
76°
59°
23
77°
60°
24
78°
57°
25
76°
58°
26
77°
63°
27
80°
63°
28
79°
62°
29
76°
63°
30
82°
64°
31
80°
63°
1
76°
63°
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 74° to 88°, with overnight lows between 52° and 65°. The average high for July is 79° with an average low of 60°. 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.
