S
M
T
W
T
F
S
26
70°
61°
27
62°
59°
28
62°
57°
29
62°
60°
30
64°
59°
31
63°
59°
1
65°
60°
2
61°
60°
3
63°
59°
4
63°
60°
5
65°
60°
6
66°
59°
7
66°
60°
8
63°
58°
9
62°
59°
10
63°
60°
11
65°
61°
12
66°
60°
13
66°
60°
14
65°
59°
15
67°
61°
16
67°
60°
17
66°
59°
18
62°
60°
19
66°
59°
20
66°
60°
21
65°
59°
22
63°
58°
23
63°
58°
24
61°
57°
25
61°
57°
26
62°
58°
27
61°
57°
28
62°
56°
29
61°
58°
30
61°
58°
31
63°
55°
1
61°
54°
2
60°
58°
3
60°
53°
4
64°
53°
5
61°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bethesda
Bethesda's August 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 53° and 61°. The average high for August is 63° with an average low of 58°. 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 Bethesda. See also: September | October | November.
