S
M
T
W
T
F
S
28
85°
66°
29
88°
67°
30
89°
67°
1
88°
66°
2
87°
67°
3
86°
67°
4
86°
66°
5
83°
65°
6
85°
63°
7
82°
67°
8
83°
65°
9
84°
61°
10
84°
63°
11
85°
60°
12
82°
59°
13
81°
58°
14
83°
59°
15
86°
63°
16
85°
60°
17
84°
59°
18
80°
58°
19
80°
57°
20
Hist. Avg.
84°
63°
21
Hist. Avg.
84°
63°
22
Hist. Avg.
84°
63°
23
Hist. Avg.
84°
63°
24
Hist. Avg.
84°
63°
25
Hist. Avg.
84°
63°
26
Hist. Avg.
84°
63°
27
Hist. Avg.
84°
63°
28
Hist. Avg.
84°
62°
29
Hist. Avg.
84°
62°
30
Hist. Avg.
83°
62°
31
Hist. Avg.
83°
62°
1
Hist. Avg.
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Princeton
Princeton's July 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 57° and 67°. The average high for July is 84° 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.
