S
M
T
W
T
F
S
28
85°
48°
29
78°
50°
30
83°
41°
1
84°
44°
2
78°
41°
3
78°
44°
4
77°
41°
5
75°
45°
6
78°
48°
7
74°
50°
8
75°
49°
9
77°
48°
10
76°
47°
11
80°
50°
12
80°
52°
13
79°
52°
14
77°
50°
15
75°
45°
16
73°
46°
17
77°
47°
18
77°
47°
19
76°
44°
20
76°
47°
21
77°
47°
22
77°
46°
23
76°
45°
24
76°
46°
25
71°
46°
26
70°
43°
27
70°
43°
28
71°
44°
29
75°
45°
30
76°
46°
31
76°
47°
1
72°
46°
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 70° to 80°, with overnight lows between 41° and 52°. The average high for July is 76° with an average low of 46°. 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.
