S
M
T
W
T
F
S
28
83°
65°
29
89°
64°
30
92°
69°
1
98°
74°
2
97°
76°
3
96°
71°
4
90°
69°
5
89°
68°
6
85°
64°
7
86°
63°
8
83°
62°
9
84°
63°
10
86°
63°
11
87°
66°
12
87°
65°
13
86°
66°
14
85°
59°
15
77°
56°
16
78°
56°
17
78°
56°
18
79°
57°
19
83°
62°
20
85°
63°
21
80°
62°
22
82°
62°
23
84°
63°
24
82°
62°
25
82°
60°
26
85°
63°
27
86°
63°
28
85°
64°
29
86°
63°
30
87°
64°
31
84°
63°
1
79°
62°
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 77° to 98°, with overnight lows between 56° and 76°. The average high for July is 85° 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.
