S
M
T
W
T
F
S
28
75°
66°
29
84°
65°
30
88°
67°
1
92°
69°
2
93°
68°
3
91°
67°
4
90°
66°
5
89°
65°
6
86°
64°
7
83°
64°
8
83°
62°
9
81°
63°
10
83°
63°
11
82°
61°
12
83°
64°
13
83°
62°
14
81°
58°
15
78°
59°
16
78°
59°
17
79°
58°
18
80°
60°
19
83°
61°
20
84°
62°
21
83°
64°
22
83°
64°
23
82°
63°
24
80°
62°
25
82°
63°
26
83°
64°
27
82°
64°
28
79°
63°
29
79°
63°
30
78°
58°
31
78°
57°
1
77°
58°
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 93°, with overnight lows between 57° and 69°. The average high for July is 83° with an average low of 63°. 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.
