S
M
T
W
T
F
S
26
69°
56°
27
70°
55°
28
69°
55°
29
70°
56°
30
69°
56°
31
66°
55°
1
67°
55°
2
64°
56°
3
67°
55°
4
69°
56°
5
69°
56°
6
65°
55°
7
66°
53°
8
65°
50°
9
65°
54°
10
66°
54°
11
67°
53°
12
65°
51°
13
65°
52°
14
66°
54°
15
64°
51°
16
64°
51°
17
65°
49°
18
65°
51°
19
64°
51°
20
65°
50°
21
64°
53°
22
65°
52°
23
64°
49°
24
64°
49°
25
65°
50°
26
64°
48°
27
66°
50°
28
67°
52°
29
67°
54°
30
66°
53°
31
65°
53°
1
66°
54°
2
65°
53°
3
64°
53°
4
65°
51°
5
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Castleside
Castleside's August 2026 forecast shows daily high temperatures ranging from 64° to 70°, with overnight lows between 48° and 56°. The average high for August is 66° with an average low of 53°. 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 Castleside. See also: September | October | November.
