S
M
T
W
T
F
S
28
89°
72°
29
90°
73°
30
92°
73°
1
92°
74°
2
93°
71°
3
93°
74°
4
89°
73°
5
90°
73°
6
86°
71°
7
91°
71°
8
92°
72°
9
91°
72°
10
89°
71°
11
87°
72°
12
88°
70°
13
90°
71°
14
90°
70°
15
89°
68°
16
87°
66°
17
85°
65°
18
85°
65°
19
90°
71°
20
91°
72°
21
92°
72°
22
91°
71°
23
92°
72°
24
93°
72°
25
93°
71°
26
92°
72°
27
94°
73°
28
94°
72°
29
93°
73°
30
94°
72°
31
92°
71°
1
90°
70°
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 85° to 94°, with overnight lows between 65° and 74°. The average high for July is 91° with an average low of 71°. 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.
