S
M
T
W
T
F
S
28
78°
57°
29
74°
55°
30
72°
52°
1
72°
53°
2
73°
57°
3
74°
54°
4
73°
55°
5
74°
55°
6
76°
60°
7
81°
62°
8
82°
61°
9
82°
61°
10
77°
60°
11
81°
61°
12
82°
57°
13
75°
55°
14
76°
60°
15
80°
61°
16
80°
54°
17
75°
53°
18
74°
54°
19
75°
60°
20
75°
59°
21
76°
57°
22
75°
58°
23
76°
56°
24
76°
60°
25
79°
61°
26
81°
61°
27
82°
54°
28
76°
56°
29
77°
60°
30
76°
58°
31
76°
53°
1
77°
54°
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 72° to 82°, with overnight lows between 52° and 62°. The average high for July is 77° with an average low of 57°. 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.
