S
M
T
W
T
F
S
26
78°
68°
27
80°
68°
28
81°
68°
29
77°
66°
30
78°
67°
31
79°
66°
1
80°
66°
2
78°
66°
3
76°
65°
4
77°
64°
5
78°
65°
6
78°
67°
7
80°
69°
8
81°
70°
9
81°
70°
10
82°
69°
11
81°
69°
12
81°
66°
13
79°
66°
14
77°
63°
15
76°
63°
16
75°
64°
17
76°
67°
18
78°
70°
19
80°
71°
20
82°
71°
21
82°
70°
22
80°
68°
23
81°
69°
24
82°
68°
25
80°
67°
26
78°
65°
27
76°
63°
28
76°
63°
29
77°
65°
30
77°
67°
31
80°
70°
1
82°
70°
2
82°
71°
3
81°
70°
4
82°
69°
5
82°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Castle
Castle's August 2026 forecast shows daily high temperatures ranging from 75° to 82°, with overnight lows between 63° and 71°. The average high for August is 79° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Castle. See also: September | October | November.
