S
M
T
W
T
F
S
28
80°
58°
29
80°
59°
30
81°
59°
1
84°
65°
2
88°
66°
3
87°
66°
4
82°
64°
5
85°
65°
6
88°
66°
7
87°
67°
8
88°
67°
9
89°
68°
10
89°
66°
11
84°
62°
12
83°
65°
13
82°
64°
14
82°
61°
15
83°
62°
16
83°
65°
17
84°
67°
18
84°
67°
19
87°
66°
20
85°
64°
21
82°
62°
22
83°
65°
23
82°
65°
24
90°
61°
25
87°
60°
26
83°
60°
27
82°
61°
28
83°
60°
29
84°
61°
30
83°
62°
31
82°
62°
1
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Castleton
Castleton's July 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 58° and 68°. The average high for July is 84° with an average low of 63°. 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 Castleton. See also: August | September | October.
