S
M
T
W
T
F
S
28
80°
66°
29
87°
63°
30
85°
65°
1
88°
73°
2
95°
75°
3
97°
77°
4
95°
76°
5
86°
71°
6
81°
69°
7
84°
67°
8
83°
69°
9
82°
70°
10
85°
70°
11
85°
71°
12
87°
72°
13
87°
72°
14
86°
68°
15
78°
64°
16
79°
65°
17
81°
68°
18
80°
68°
19
84°
70°
20
83°
71°
21
80°
71°
22
80°
70°
23
81°
71°
24
81°
71°
25
82°
70°
26
83°
70°
27
84°
71°
28
85°
70°
29
83°
71°
30
85°
72°
31
86°
72°
1
85°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Setauket
Setauket's July 2026 forecast shows daily high temperatures ranging from 78° to 97°, with overnight lows between 64° and 77°. The average high for July is 84° with an average low of 71°. 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 Setauket. See also: August | September | October.
