S
M
T
W
T
F
S
26
87°
62°
27
87°
66°
28
88°
62°
29
81°
60°
30
81°
63°
31
82°
62°
1
84°
65°
2
87°
66°
3
88°
66°
4
88°
65°
5
85°
62°
6
87°
65°
7
88°
66°
8
87°
66°
9
88°
64°
10
81°
60°
11
84°
62°
12
87°
65°
13
86°
64°
14
80°
58°
15
79°
57°
16
79°
57°
17
80°
60°
18
83°
63°
19
85°
61°
20
86°
64°
21
86°
63°
22
81°
59°
23
83°
64°
24
84°
57°
25
84°
59°
26
85°
61°
27
87°
62°
28
82°
59°
29
80°
55°
30
79°
58°
31
80°
61°
1
80°
62°
2
81°
59°
3
80°
53°
4
78°
52°
5
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rockville
Rockville's August 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 52° and 66°. The average high for August is 83° with an average low of 61°. 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 Rockville. See also: September | October | November.
