S
M
T
W
T
F
S
26
65°
51°
27
65°
55°
28
66°
52°
29
64°
51°
30
65°
51°
31
69°
56°
1
69°
55°
2
67°
53°
3
67°
52°
4
67°
50°
5
65°
51°
6
66°
51°
7
66°
52°
8
67°
50°
9
67°
51°
10
68°
50°
11
68°
55°
12
69°
55°
13
65°
54°
14
69°
56°
15
68°
53°
16
67°
54°
17
66°
54°
18
67°
53°
19
65°
52°
20
65°
54°
21
68°
55°
22
68°
52°
23
66°
54°
24
64°
53°
25
64°
54°
26
65°
52°
27
63°
54°
28
63°
53°
29
66°
54°
30
67°
54°
31
66°
52°
1
66°
52°
2
65°
53°
3
65°
52°
4
64°
51°
5
65°
49°
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 63° to 69°, with overnight lows between 49° 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.
