S
M
T
W
T
F
S
28
84°
63°
29
89°
62°
30
92°
71°
1
99°
74°
2
101°
73°
3
100°
73°
4
94°
70°
5
90°
70°
6
87°
67°
7
83°
66°
8
85°
66°
9
87°
66°
10
87°
69°
11
89°
68°
12
88°
64°
13
81°
61°
14
79°
60°
15
79°
60°
16
80°
61°
17
81°
62°
18
81°
62°
19
82°
66°
20
83°
67°
21
82°
68°
22
87°
68°
23
83°
67°
24
85°
68°
25
87°
68°
26
88°
69°
27
89°
69°
28
88°
68°
29
87°
68°
30
87°
64°
31
80°
62°
1
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Cornwall-on-Hudson
Cornwall-on-Hudson's July 2026 forecast shows daily high temperatures ranging from 79° to 101°, with overnight lows between 60° and 74°. The average high for July is 86° with an average low of 66°. 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 Cornwall-on-Hudson. See also: August | September | October.