S
M
T
W
T
F
S
26
84°
66°
27
87°
72°
28
91°
73°
29
88°
72°
30
87°
71°
31
88°
72°
1
91°
73°
2
86°
72°
3
86°
70°
4
87°
73°
5
89°
72°
6
89°
74°
7
90°
75°
8
89°
75°
9
90°
74°
10
89°
74°
11
85°
72°
12
85°
74°
13
86°
75°
14
90°
75°
15
90°
74°
16
89°
74°
17
85°
73°
18
85°
72°
19
86°
73°
20
87°
74°
21
89°
74°
22
88°
73°
23
88°
74°
24
87°
73°
25
89°
74°
26
90°
75°
27
90°
74°
28
88°
73°
29
84°
73°
30
82°
72°
31
86°
72°
1
88°
71°
2
87°
72°
3
88°
68°
4
81°
70°
5
84°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Baltimore
Baltimore's August 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 66° and 75°. The average high for August is 87° with an average low of 73°. 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 Baltimore. See also: September | October | November.