S
M
T
W
T
F
S
28
67°
43°
29
74°
48°
30
85°
49°
1
86°
58°
2
88°
55°
3
92°
53°
4
103°
57°
5
98°
60°
6
96°
67°
7
98°
63°
8
102°
64°
9
100°
60°
10
102°
65°
11
106°
65°
12
105°
68°
13
104°
66°
14
103°
67°
15
107°
65°
16
106°
67°
17
107°
63°
18
104°
62°
19
105°
63°
20
101°
60°
21
104°
64°
22
104°
66°
23
105°
66°
24
105°
67°
25
106°
67°
26
105°
66°
27
105°
66°
28
104°
65°
29
105°
66°
30
105°
65°
31
104°
66°
1
105°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Three Island State Park
Three Island State Park's July 2026 forecast shows daily high temperatures ranging from 98° to 107°, with overnight lows between 60° and 68°. The average high for July is 104° with an average low of 65°. 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 Three Island State Park. See also: August | September | October.
