S
M
T
W
T
F
S
28
62°
48°
29
63°
50°
30
67°
47°
1
71°
47°
2
73°
50°
3
79°
51°
4
79°
50°
5
80°
52°
6
85°
54°
7
81°
54°
8
84°
53°
9
82°
55°
10
83°
55°
11
80°
54°
12
84°
54°
13
81°
53°
14
81°
56°
15
83°
58°
16
80°
58°
17
78°
56°
18
85°
58°
19
87°
59°
20
86°
58°
21
85°
58°
22
84°
57°
23
79°
51°
24
78°
50°
25
77°
49°
26
81°
53°
27
87°
57°
28
86°
53°
29
84°
54°
30
87°
57°
31
84°
52°
1
81°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Roslyn
Roslyn's July 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 47° and 59°. The average high for July is 81° with an average low of 54°. 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 Roslyn. See also: August | September | October.