S
M
T
W
T
F
S
26
75°
49°
27
78°
47°
28
84°
45°
29
84°
46°
30
85°
47°
31
83°
48°
1
81°
48°
2
84°
47°
3
77°
48°
4
78°
45°
5
Hist. Avg.
80°
45°
6
Hist. Avg.
80°
45°
7
Hist. Avg.
80°
45°
8
Hist. Avg.
80°
45°
9
Hist. Avg.
79°
45°
10
Hist. Avg.
79°
45°
11
Hist. Avg.
79°
45°
12
Hist. Avg.
79°
44°
13
Hist. Avg.
78°
44°
14
Hist. Avg.
78°
44°
15
Hist. Avg.
78°
44°
16
Hist. Avg.
78°
44°
17
Hist. Avg.
78°
44°
18
Hist. Avg.
77°
43°
19
Hist. Avg.
77°
43°
20
Hist. Avg.
77°
43°
21
Hist. Avg.
76°
43°
22
Hist. Avg.
76°
43°
23
Hist. Avg.
76°
42°
24
Hist. Avg.
76°
42°
25
Hist. Avg.
75°
42°
26
Hist. Avg.
75°
42°
27
Hist. Avg.
75°
42°
28
Hist. Avg.
74°
41°
29
Hist. Avg.
74°
41°
30
Hist. Avg.
74°
41°
31
Hist. Avg.
74°
41°
1
Hist. Avg.
73°
40°
2
Hist. Avg.
73°
40°
3
Hist. Avg.
73°
40°
4
Hist. Avg.
72°
40°
5
Hist. Avg.
72°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Princeton
Princeton's August 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 45° and 49°. The average high for August is 81° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Princeton. See also: September | October | November.
