S
M
T
W
T
F
S
28
76°
52°
29
82°
57°
30
77°
59°
1
79°
64°
2
84°
62°
3
79°
60°
4
78°
61°
5
75°
57°
6
79°
59°
7
81°
58°
8
80°
59°
9
81°
62°
10
81°
63°
11
81°
63°
12
78°
62°
13
75°
59°
14
76°
57°
15
76°
62°
16
81°
63°
17
81°
64°
18
80°
64°
19
81°
63°
20
82°
64°
21
82°
63°
22
79°
63°
23
82°
64°
24
82°
65°
25
83°
63°
26
79°
61°
27
77°
62°
28
77°
59°
29
78°
63°
30
82°
58°
31
75°
57°
1
75°
56°
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 75° to 84°, with overnight lows between 52° and 65°. The average high for July is 79° with an average low of 61°. 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.
