S
M
T
W
T
F
S
26
83°
62°
27
88°
68°
28
88°
67°
29
82°
66°
30
83°
69°
31
87°
67°
1
88°
65°
2
84°
74°
3
89°
74°
4
85°
71°
5
88°
74°
6
92°
76°
7
93°
72°
8
90°
71°
9
91°
71°
10
90°
70°
11
87°
70°
12
87°
71°
13
89°
72°
14
82°
73°
15
87°
69°
16
77°
72°
17
92°
72°
18
86°
62°
19
86°
67°
20
81°
66°
21
79°
66°
22
79°
67°
23
81°
60°
24
81°
61°
25
82°
62°
26
81°
63°
27
81°
61°
28
82°
60°
29
81°
61°
30
82°
63°
31
80°
62°
1
78°
59°
2
79°
60°
3
78°
63°
4
77°
61°
5
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Catonsville
Catonsville's August 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 59° and 67°. The average high for August is 81° with an average low of 62°. 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 Catonsville. See also: September | October | November.
