S
M
T
W
T
F
S
28
91°
73°
29
92°
73°
30
93°
73°
1
93°
73°
2
95°
74°
3
95°
74°
4
91°
72°
5
87°
71°
6
87°
69°
7
89°
71°
8
86°
70°
9
90°
72°
10
84°
70°
11
83°
68°
12
87°
64°
13
88°
66°
14
89°
69°
15
92°
70°
16
90°
69°
17
90°
66°
18
89°
67°
19
88°
66°
20
90°
67°
21
86°
66°
22
84°
65°
23
86°
66°
24
91°
71°
25
91°
71°
26
92°
70°
27
91°
70°
28
90°
69°
29
87°
70°
30
84°
69°
31
83°
69°
1
83°
68°
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 83° to 92°, with overnight lows between 64° and 72°. The average high for July is 88° with an average low of 68°. 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.
