S
M
T
W
T
F
S
28
84°
59°
29
89°
57°
30
92°
59°
1
91°
60°
2
89°
60°
3
93°
61°
4
96°
64°
5
93°
68°
6
94°
61°
7
92°
59°
8
93°
63°
9
100°
67°
10
99°
63°
11
97°
69°
12
96°
70°
13
96°
67°
14
101°
69°
15
99°
68°
16
98°
67°
17
100°
68°
18
99°
65°
19
95°
65°
20
99°
67°
21
94°
60°
22
97°
65°
23
97°
64°
24
89°
61°
25
90°
60°
26
93°
61°
27
94°
63°
28
95°
63°
29
96°
62°
30
96°
63°
31
95°
63°
1
94°
62°
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 89° to 101°, with overnight lows between 60° and 70°. The average high for July is 96° with an average low of 65°. 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.
