S
M
T
W
T
F
S
28
92°
78°
29
92°
80°
30
93°
77°
1
93°
76°
2
91°
77°
3
92°
77°
4
93°
79°
5
92°
80°
6
92°
77°
7
92°
78°
8
91°
84°
9
92°
83°
10
92°
77°
11
92°
80°
12
94°
80°
13
93°
78°
14
92°
78°
15
92°
79°
16
94°
78°
17
95°
78°
18
96°
80°
19
95°
78°
20
92°
77°
21
90°
78°
22
91°
79°
23
92°
80°
24
89°
76°
25
90°
76°
26
87°
75°
27
91°
76°
28
90°
76°
29
92°
75°
30
91°
76°
31
92°
76°
1
91°
75°
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 87° to 96°, with overnight lows between 75° and 80°. The average high for July is 92° with an average low of 77°. 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.
