S
M
T
W
T
F
S
28
90°
70°
29
89°
69°
30
90°
68°
1
88°
64°
2
82°
65°
3
84°
68°
4
88°
70°
5
89°
69°
6
90°
68°
7
87°
65°
8
86°
66°
9
85°
69°
10
86°
70°
11
87°
64°
12
86°
65°
13
86°
65°
14
85°
66°
15
85°
65°
16
86°
65°
17
85°
67°
18
87°
66°
19
88°
68°
20
89°
71°
21
91°
69°
22
90°
69°
23
87°
71°
24
88°
70°
25
89°
65°
26
85°
66°
27
85°
68°
28
86°
71°
29
90°
73°
30
92°
71°
31
91°
68°
1
90°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Bethesda
Bethesda's July 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 64° and 73°. The average high for July is 87° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Bethesda. See also: August | September | October.