S
M
T
W
T
F
S
28
80°
66°
29
87°
63°
30
85°
65°
1
84°
69°
2
99°
75°
3
97°
76°
4
95°
73°
5
83°
71°
6
74°
69°
7
78°
67°
8
80°
69°
9
87°
70°
10
85°
71°
11
86°
71°
12
84°
70°
13
83°
69°
14
83°
71°
15
85°
68°
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 74° to 99°, with overnight lows between 65° and 76°. The average high for July is 84° with an average low of 70°. 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.
